Home / 497,500.76-686,569.40-282,677.21

Finding the Fourth Proportional to 497,500.76, 686,569.40 and 282,677.21

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Solution

The fourth proportional to 497,500.76, 686,569.40 and 282,677.21 is: 390,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,500.76 : 686,569.40 = 282,677.21 : x
  2. Step 2: Convert to fraction form
    497,500.76/686,569.40 = 282,677.21/x
  3. Step 3: Cross multiply
    497,500.76x = 686,569.40 × 282,677.21
  4. Step 4: Simplify right side
    497,500.76x = 194,077,517,617.14
  5. Step 5: Solve for x
    x = 194,077,517,617.14/497,500.76
  6. Step 6: Final answer
    x = 390,104.97

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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.