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Finding the Fourth Proportional to 437,445,602.70, 656,168,404.05 and 404,189,205.90

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Solution

The fourth proportional to 437,445,602.70, 656,168,404.05 and 404,189,205.90 is: 606,283,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,445,602.70 : 656,168,404.05 = 404,189,205.90 : x
  2. Step 2: Convert to fraction form
    437,445,602.70/656,168,404.05 = 404,189,205.90/x
  3. Step 3: Cross multiply
    437,445,602.70x = 656,168,404.05 × 404,189,205.90
  4. Step 4: Simplify right side
    437,445,602.70x = 265,216,186,169,639,808
  5. Step 5: Solve for x
    x = 265,216,186,169,639,808/437,445,602.70
  6. Step 6: Final answer
    x = 606,283,808.85

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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.