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Finding the Fourth Proportional to 579,497.60, 869,246.40 and 558,502.40

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Solution

The fourth proportional to 579,497.60, 869,246.40 and 558,502.40 is: 837,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,497.60 : 869,246.40 = 558,502.40 : x
  2. Step 2: Convert to fraction form
    579,497.60/869,246.40 = 558,502.40/x
  3. Step 3: Cross multiply
    579,497.60x = 869,246.40 × 558,502.40
  4. Step 4: Simplify right side
    579,497.60x = 485,476,200,591.36
  5. Step 5: Solve for x
    x = 485,476,200,591.36/579,497.60
  6. Step 6: Final answer
    x = 837,753.60

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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.