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Finding the Fourth Proportional to 709,203.60, 959,291.10 and 709,203.60

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Solution

The fourth proportional to 709,203.60, 959,291.10 and 709,203.60 is: 959,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,203.60 : 959,291.10 = 709,203.60 : x
  2. Step 2: Convert to fraction form
    709,203.60/959,291.10 = 709,203.60/x
  3. Step 3: Cross multiply
    709,203.60x = 959,291.10 × 709,203.60
  4. Step 4: Simplify right side
    709,203.60x = 680,332,701,567.96
  5. Step 5: Solve for x
    x = 680,332,701,567.96/709,203.60
  6. Step 6: Final answer
    x = 959,291.10

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.