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Finding the Fourth Proportional to 404,089.60, 557,545.26 and 260,818.96

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Solution

The fourth proportional to 404,089.60, 557,545.26 and 260,818.96 is: 359,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,089.60 : 557,545.26 = 260,818.96 : x
  2. Step 2: Convert to fraction form
    404,089.60/557,545.26 = 260,818.96/x
  3. Step 3: Cross multiply
    404,089.60x = 557,545.26 × 260,818.96
  4. Step 4: Simplify right side
    404,089.60x = 145,418,374,866.13
  5. Step 5: Solve for x
    x = 145,418,374,866.13/404,089.60
  6. Step 6: Final answer
    x = 359,866.66

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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.