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Finding the Fourth Proportional to 672,549,687.56, 928,118,149.62 and 363,500,343.56

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Solution

The fourth proportional to 672,549,687.56, 928,118,149.62 and 363,500,343.56 is: 501,630,247.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,549,687.56 : 928,118,149.62 = 363,500,343.56 : x
  2. Step 2: Convert to fraction form
    672,549,687.56/928,118,149.62 = 363,500,343.56/x
  3. Step 3: Cross multiply
    672,549,687.56x = 928,118,149.62 × 363,500,343.56
  4. Step 4: Simplify right side
    672,549,687.56x = 337,371,266,251,141,504
  5. Step 5: Solve for x
    x = 337,371,266,251,141,504/672,549,687.56
  6. Step 6: Final answer
    x = 501,630,247.54

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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.