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Finding the Fourth Proportional to 619,316.08, 854,665.92 and 347,444.40

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Solution

The fourth proportional to 619,316.08, 854,665.92 and 347,444.40 is: 479,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,316.08 : 854,665.92 = 347,444.40 : x
  2. Step 2: Convert to fraction form
    619,316.08/854,665.92 = 347,444.40/x
  3. Step 3: Cross multiply
    619,316.08x = 854,665.92 × 347,444.40
  4. Step 4: Simplify right side
    619,316.08x = 296,948,887,774.85
  5. Step 5: Solve for x
    x = 296,948,887,774.85/619,316.08
  6. Step 6: Final answer
    x = 479,478.73

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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.