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Finding the Fourth Proportional to 703,649.60, 1,053,487.20 and 547,697.60

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Solution

The fourth proportional to 703,649.60, 1,053,487.20 and 547,697.60 is: 819,999.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,649.60 : 1,053,487.20 = 547,697.60 : x
  2. Step 2: Convert to fraction form
    703,649.60/1,053,487.20 = 547,697.60/x
  3. Step 3: Cross multiply
    703,649.60x = 1,053,487.20 × 547,697.60
  4. Step 4: Simplify right side
    703,649.60x = 576,992,411,070.72
  5. Step 5: Solve for x
    x = 576,992,411,070.72/703,649.60
  6. Step 6: Final answer
    x = 819,999.63

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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.