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Finding the Fourth Proportional to 666,841.96, 920,671.14 and 595,098.76

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Solution

The fourth proportional to 666,841.96, 920,671.14 and 595,098.76 is: 821,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,841.96 : 920,671.14 = 595,098.76 : x
  2. Step 2: Convert to fraction form
    666,841.96/920,671.14 = 595,098.76/x
  3. Step 3: Cross multiply
    666,841.96x = 920,671.14 × 595,098.76
  4. Step 4: Simplify right side
    666,841.96x = 547,890,253,781.79
  5. Step 5: Solve for x
    x = 547,890,253,781.79/666,841.96
  6. Step 6: Final answer
    x = 821,619.34

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.