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Finding the Fourth Proportional to 884,662.29, 1,220,710.50 and 497,423.97

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Solution

The fourth proportional to 884,662.29, 1,220,710.50 and 497,423.97 is: 686,375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,662.29 : 1,220,710.50 = 497,423.97 : x
  2. Step 2: Convert to fraction form
    884,662.29/1,220,710.50 = 497,423.97/x
  3. Step 3: Cross multiply
    884,662.29x = 1,220,710.50 × 497,423.97
  4. Step 4: Simplify right side
    884,662.29x = 607,210,663,130.69
  5. Step 5: Solve for x
    x = 607,210,663,130.69/884,662.29
  6. Step 6: Final answer
    x = 686,375.66

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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.