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Finding the Fourth Proportional to 611,801.49, 844,387.17 and 509,665.17

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Solution

The fourth proportional to 611,801.49, 844,387.17 and 509,665.17 is: 703,422.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,801.49 : 844,387.17 = 509,665.17 : x
  2. Step 2: Convert to fraction form
    611,801.49/844,387.17 = 509,665.17/x
  3. Step 3: Cross multiply
    611,801.49x = 844,387.17 × 509,665.17
  4. Step 4: Simplify right side
    611,801.49x = 430,354,730,543.87
  5. Step 5: Solve for x
    x = 430,354,730,543.87/611,801.49
  6. Step 6: Final answer
    x = 703,422.17

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Double scale
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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.