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Finding the Fourth Proportional to 717,340.52, 989,892.01 and 411,401.09

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Solution

The fourth proportional to 717,340.52, 989,892.01 and 411,401.09 is: 567,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,340.52 : 989,892.01 = 411,401.09 : x
  2. Step 2: Convert to fraction form
    717,340.52/989,892.01 = 411,401.09/x
  3. Step 3: Cross multiply
    717,340.52x = 989,892.01 × 411,401.09
  4. Step 4: Simplify right side
    717,340.52x = 407,242,651,896.29
  5. Step 5: Solve for x
    x = 407,242,651,896.29/717,340.52
  6. Step 6: Final answer
    x = 567,711.76

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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.