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Finding the Fourth Proportional to 899,778.92, 1,241,646.18 and 497,345

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Solution

The fourth proportional to 899,778.92, 1,241,646.18 and 497,345 is: 686,309.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,778.92 : 1,241,646.18 = 497,345 : x
  2. Step 2: Convert to fraction form
    899,778.92/1,241,646.18 = 497,345/x
  3. Step 3: Cross multiply
    899,778.92x = 1,241,646.18 × 497,345
  4. Step 4: Simplify right side
    899,778.92x = 617,526,519,392.10
  5. Step 5: Solve for x
    x = 617,526,519,392.10/899,778.92
  6. Step 6: Final answer
    x = 686,309.17

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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.