Home / 821,030,437.25-1,132,114,084.13-523,200,889.25

Finding the Fourth Proportional to 821,030,437.25, 1,132,114,084.13 and 523,200,889.25

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Solution

The fourth proportional to 821,030,437.25, 1,132,114,084.13 and 523,200,889.25 is: 721,438,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,030,437.25 : 1,132,114,084.13 = 523,200,889.25 : x
  2. Step 2: Convert to fraction form
    821,030,437.25/1,132,114,084.13 = 523,200,889.25/x
  3. Step 3: Cross multiply
    821,030,437.25x = 1,132,114,084.13 × 523,200,889.25
  4. Step 4: Simplify right side
    821,030,437.25x = 592,323,095,546,649,344
  5. Step 5: Solve for x
    x = 592,323,095,546,649,344/821,030,437.25
  6. Step 6: Final answer
    x = 721,438,656.44

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Double scale
Find fourth proportional to 821,030,438.25, 1,132,114,085.50 and 523,200,890.25
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.