Home / 811,432.52-1,217,259.49-338,007.16

Finding the Fourth Proportional to 811,432.52, 1,217,259.49 and 338,007.16

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Solution

The fourth proportional to 811,432.52, 1,217,259.49 and 338,007.16 is: 507,056.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,432.52 : 1,217,259.49 = 338,007.16 : x
  2. Step 2: Convert to fraction form
    811,432.52/1,217,259.49 = 338,007.16/x
  3. Step 3: Cross multiply
    811,432.52x = 1,217,259.49 × 338,007.16
  4. Step 4: Simplify right side
    811,432.52x = 411,442,423,197.95
  5. Step 5: Solve for x
    x = 411,442,423,197.95/811,432.52
  6. Step 6: Final answer
    x = 507,056.86

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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.