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Finding the Fourth Proportional to 579,601.60, 869,402.40 and 558,606.40

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Solution

The fourth proportional to 579,601.60, 869,402.40 and 558,606.40 is: 837,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,601.60 : 869,402.40 = 558,606.40 : x
  2. Step 2: Convert to fraction form
    579,601.60/869,402.40 = 558,606.40/x
  3. Step 3: Cross multiply
    579,601.60x = 869,402.40 × 558,606.40
  4. Step 4: Simplify right side
    579,601.60x = 485,653,744,815.36
  5. Step 5: Solve for x
    x = 485,653,744,815.36/579,601.60
  6. Step 6: Final answer
    x = 837,909.60

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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.