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Finding the Fourth Proportional to 266,070,000.40, 399,105,000.60 and 157,230,883.60

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Solution

The fourth proportional to 266,070,000.40, 399,105,000.60 and 157,230,883.60 is: 235,846,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,070,000.40 : 399,105,000.60 = 157,230,883.60 : x
  2. Step 2: Convert to fraction form
    266,070,000.40/399,105,000.60 = 157,230,883.60/x
  3. Step 3: Cross multiply
    266,070,000.40x = 399,105,000.60 × 157,230,883.60
  4. Step 4: Simplify right side
    266,070,000.40x = 62,751,631,893,516,528
  5. Step 5: Solve for x
    x = 62,751,631,893,516,528/266,070,000.40
  6. Step 6: Final answer
    x = 235,846,325.40

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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.