Home / 886,985.40-1,330,478.10-354,888.30

Finding the Fourth Proportional to 886,985.40, 1,330,478.10 and 354,888.30

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Solution

The fourth proportional to 886,985.40, 1,330,478.10 and 354,888.30 is: 532,332.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,985.40 : 1,330,478.10 = 354,888.30 : x
  2. Step 2: Convert to fraction form
    886,985.40/1,330,478.10 = 354,888.30/x
  3. Step 3: Cross multiply
    886,985.40x = 1,330,478.10 × 354,888.30
  4. Step 4: Simplify right side
    886,985.40x = 472,171,111,096.23
  5. Step 5: Solve for x
    x = 472,171,111,096.23/886,985.40
  6. Step 6: Final answer
    x = 532,332.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.