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Finding the Fourth Proportional to 829,854.40, 1,244,781.60 and 817,412.80

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Solution

The fourth proportional to 829,854.40, 1,244,781.60 and 817,412.80 is: 1,226,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,854.40 : 1,244,781.60 = 817,412.80 : x
  2. Step 2: Convert to fraction form
    829,854.40/1,244,781.60 = 817,412.80/x
  3. Step 3: Cross multiply
    829,854.40x = 1,244,781.60 × 817,412.80
  4. Step 4: Simplify right side
    829,854.40x = 1,017,500,413,044.48
  5. Step 5: Solve for x
    x = 1,017,500,413,044.48/829,854.40
  6. Step 6: Final answer
    x = 1,226,119.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.