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Finding the Fourth Proportional to 591,712.80, 887,569.20 and 528,727.20

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Solution

The fourth proportional to 591,712.80, 887,569.20 and 528,727.20 is: 793,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,712.80 : 887,569.20 = 528,727.20 : x
  2. Step 2: Convert to fraction form
    591,712.80/887,569.20 = 528,727.20/x
  3. Step 3: Cross multiply
    591,712.80x = 887,569.20 × 528,727.20
  4. Step 4: Simplify right side
    591,712.80x = 469,281,977,922.24
  5. Step 5: Solve for x
    x = 469,281,977,922.24/591,712.80
  6. Step 6: Final answer
    x = 793,090.80

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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.