Home / 853,923.47-1,280,860.90-254,889.59

Finding the Fourth Proportional to 853,923.47, 1,280,860.90 and 254,889.59

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Solution

The fourth proportional to 853,923.47, 1,280,860.90 and 254,889.59 is: 382,327.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,923.47 : 1,280,860.90 = 254,889.59 : x
  2. Step 2: Convert to fraction form
    853,923.47/1,280,860.90 = 254,889.59/x
  3. Step 3: Cross multiply
    853,923.47x = 1,280,860.90 × 254,889.59
  4. Step 4: Simplify right side
    853,923.47x = 326,478,102,606.50
  5. Step 5: Solve for x
    x = 326,478,102,606.50/853,923.47
  6. Step 6: Final answer
    x = 382,327.12

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Double scale
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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.