Home / 513,916.40-709,196.04-284,468.76

Finding the Fourth Proportional to 513,916.40, 709,196.04 and 284,468.76

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Solution

The fourth proportional to 513,916.40, 709,196.04 and 284,468.76 is: 392,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,916.40 : 709,196.04 = 284,468.76 : x
  2. Step 2: Convert to fraction form
    513,916.40/709,196.04 = 284,468.76/x
  3. Step 3: Cross multiply
    513,916.40x = 709,196.04 × 284,468.76
  4. Step 4: Simplify right side
    513,916.40x = 201,744,118,095.71
  5. Step 5: Solve for x
    x = 201,744,118,095.71/513,916.40
  6. Step 6: Final answer
    x = 392,562.13

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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.