Home / 497,140.60-686,071.20-282,273.52

Finding the Fourth Proportional to 497,140.60, 686,071.20 and 282,273.52

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Solution

The fourth proportional to 497,140.60, 686,071.20 and 282,273.52 is: 389,547.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,140.60 : 686,071.20 = 282,273.52 : x
  2. Step 2: Convert to fraction form
    497,140.60/686,071.20 = 282,273.52/x
  3. Step 3: Cross multiply
    497,140.60x = 686,071.20 × 282,273.52
  4. Step 4: Simplify right side
    497,140.60x = 193,659,732,594.62
  5. Step 5: Solve for x
    x = 193,659,732,594.62/497,140.60
  6. Step 6: Final answer
    x = 389,547.21

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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.