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Finding the Fourth Proportional to 638,205.60, 955,340.10 and 567,346.80

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Solution

The fourth proportional to 638,205.60, 955,340.10 and 567,346.80 is: 849,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,205.60 : 955,340.10 = 567,346.80 : x
  2. Step 2: Convert to fraction form
    638,205.60/955,340.10 = 567,346.80/x
  3. Step 3: Cross multiply
    638,205.60x = 955,340.10 × 567,346.80
  4. Step 4: Simplify right side
    638,205.60x = 542,009,148,646.68
  5. Step 5: Solve for x
    x = 542,009,148,646.68/638,205.60
  6. Step 6: Final answer
    x = 849,270.44

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1.5x scale

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.