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Finding the Fourth Proportional to 579,497.60, 869,246.40 and 496,553.60

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Solution

The fourth proportional to 579,497.60, 869,246.40 and 496,553.60 is: 744,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,497.60 : 869,246.40 = 496,553.60 : x
  2. Step 2: Convert to fraction form
    579,497.60/869,246.40 = 496,553.60/x
  3. Step 3: Cross multiply
    579,497.60x = 869,246.40 × 496,553.60
  4. Step 4: Simplify right side
    579,497.60x = 431,627,429,207.04
  5. Step 5: Solve for x
    x = 431,627,429,207.04/579,497.60
  6. Step 6: Final answer
    x = 744,830.40

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Half scale
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Double scale
Find fourth proportional to 579,498.60, 869,247.90 and 496,554.60
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.