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Finding the Fourth Proportional to 800,577.60, 1,200,866.40 and 709,598.40

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Solution

The fourth proportional to 800,577.60, 1,200,866.40 and 709,598.40 is: 1,064,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,577.60 : 1,200,866.40 = 709,598.40 : x
  2. Step 2: Convert to fraction form
    800,577.60/1,200,866.40 = 709,598.40/x
  3. Step 3: Cross multiply
    800,577.60x = 1,200,866.40 × 709,598.40
  4. Step 4: Simplify right side
    800,577.60x = 852,132,876,053.76
  5. Step 5: Solve for x
    x = 852,132,876,053.76/800,577.60
  6. Step 6: Final answer
    x = 1,064,397.60

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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.