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Finding the Fourth Proportional to 554,752.80, 832,129.20 and 531,424.80

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Solution

The fourth proportional to 554,752.80, 832,129.20 and 531,424.80 is: 797,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,752.80 : 832,129.20 = 531,424.80 : x
  2. Step 2: Convert to fraction form
    554,752.80/832,129.20 = 531,424.80/x
  3. Step 3: Cross multiply
    554,752.80x = 832,129.20 × 531,424.80
  4. Step 4: Simplify right side
    554,752.80x = 442,214,093,684.16
  5. Step 5: Solve for x
    x = 442,214,093,684.16/554,752.80
  6. Step 6: Final answer
    x = 797,137.20

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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.