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Finding the Fourth Proportional to 543,373,281.90, 815,059,922.85 and 543,373,281.90

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Solution

The fourth proportional to 543,373,281.90, 815,059,922.85 and 543,373,281.90 is: 815,059,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,373,281.90 : 815,059,922.85 = 543,373,281.90 : x
  2. Step 2: Convert to fraction form
    543,373,281.90/815,059,922.85 = 543,373,281.90/x
  3. Step 3: Cross multiply
    543,373,281.90x = 815,059,922.85 × 543,373,281.90
  4. Step 4: Simplify right side
    543,373,281.90x = 442,881,785,224,165,312
  5. Step 5: Solve for x
    x = 442,881,785,224,165,312/543,373,281.90
  6. Step 6: Final answer
    x = 815,059,922.85

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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.