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Finding the Fourth Proportional to 659,866.25, 910,616.03 and 358,060.25

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Solution

The fourth proportional to 659,866.25, 910,616.03 and 358,060.25 is: 494,123.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,866.25 : 910,616.03 = 358,060.25 : x
  2. Step 2: Convert to fraction form
    659,866.25/910,616.03 = 358,060.25/x
  3. Step 3: Cross multiply
    659,866.25x = 910,616.03 × 358,060.25
  4. Step 4: Simplify right side
    659,866.25x = 326,055,403,355.81
  5. Step 5: Solve for x
    x = 326,055,403,355.81/659,866.25
  6. Step 6: Final answer
    x = 494,123.47

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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.