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Finding the Fourth Proportional to 717,603.60, 990,218.52 and 441,917.60

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Solution

The fourth proportional to 717,603.60, 990,218.52 and 441,917.60 is: 609,800.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,603.60 : 990,218.52 = 441,917.60 : x
  2. Step 2: Convert to fraction form
    717,603.60/990,218.52 = 441,917.60/x
  3. Step 3: Cross multiply
    717,603.60x = 990,218.52 × 441,917.60
  4. Step 4: Simplify right side
    717,603.60x = 437,594,991,833.95
  5. Step 5: Solve for x
    x = 437,594,991,833.95/717,603.60
  6. Step 6: Final answer
    x = 609,800.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.