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Finding the Fourth Proportional to 653,817.60, 980,726.40 and 233,107.20

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Solution

The fourth proportional to 653,817.60, 980,726.40 and 233,107.20 is: 349,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,817.60 : 980,726.40 = 233,107.20 : x
  2. Step 2: Convert to fraction form
    653,817.60/980,726.40 = 233,107.20/x
  3. Step 3: Cross multiply
    653,817.60x = 980,726.40 × 233,107.20
  4. Step 4: Simplify right side
    653,817.60x = 228,614,385,070.08
  5. Step 5: Solve for x
    x = 228,614,385,070.08/653,817.60
  6. Step 6: Final answer
    x = 349,660.80

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Double scale
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Similar ratio
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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.