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Finding the Fourth Proportional to 900,652.80, 1,347,698.70 and 664,456.80

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Solution

The fourth proportional to 900,652.80, 1,347,698.70 and 664,456.80 is: 994,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,652.80 : 1,347,698.70 = 664,456.80 : x
  2. Step 2: Convert to fraction form
    900,652.80/1,347,698.70 = 664,456.80/x
  3. Step 3: Cross multiply
    900,652.80x = 1,347,698.70 × 664,456.80
  4. Step 4: Simplify right side
    900,652.80x = 895,487,565,566.16
  5. Step 5: Solve for x
    x = 895,487,565,566.16/900,652.80
  6. Step 6: Final answer
    x = 994,265.01

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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.