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Finding the Fourth Proportional to 656,886.90, 985,330.35 and 236,205.30

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Solution

The fourth proportional to 656,886.90, 985,330.35 and 236,205.30 is: 354,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,886.90 : 985,330.35 = 236,205.30 : x
  2. Step 2: Convert to fraction form
    656,886.90/985,330.35 = 236,205.30/x
  3. Step 3: Cross multiply
    656,886.90x = 985,330.35 × 236,205.30
  4. Step 4: Simplify right side
    656,886.90x = 232,740,250,920.86
  5. Step 5: Solve for x
    x = 232,740,250,920.86/656,886.90
  6. Step 6: Final answer
    x = 354,307.95

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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.