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Finding the Fourth Proportional to 700,713.72, 966,984.98 and 378,423.86

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Solution

The fourth proportional to 700,713.72, 966,984.98 and 378,423.86 is: 522,224.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,713.72 : 966,984.98 = 378,423.86 : x
  2. Step 2: Convert to fraction form
    700,713.72/966,984.98 = 378,423.86/x
  3. Step 3: Cross multiply
    700,713.72x = 966,984.98 × 378,423.86
  4. Step 4: Simplify right side
    700,713.72x = 365,930,181,966.58
  5. Step 5: Solve for x
    x = 365,930,181,966.58/700,713.72
  6. Step 6: Final answer
    x = 522,224.94

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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.