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Finding the Fourth Proportional to 566,130.82, 781,505.68 and 404,705.92

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Solution

The fourth proportional to 566,130.82, 781,505.68 and 404,705.92 is: 558,669.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,130.82 : 781,505.68 = 404,705.92 : x
  2. Step 2: Convert to fraction form
    566,130.82/781,505.68 = 404,705.92/x
  3. Step 3: Cross multiply
    566,130.82x = 781,505.68 × 404,705.92
  4. Step 4: Simplify right side
    566,130.82x = 316,279,975,209.63
  5. Step 5: Solve for x
    x = 316,279,975,209.63/566,130.82
  6. Step 6: Final answer
    x = 558,669.42

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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.