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Finding the Fourth Proportional to 539,621.76, 744,658.46 and 297,899.12

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Solution

The fourth proportional to 539,621.76, 744,658.46 and 297,899.12 is: 411,089.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,621.76 : 744,658.46 = 297,899.12 : x
  2. Step 2: Convert to fraction form
    539,621.76/744,658.46 = 297,899.12/x
  3. Step 3: Cross multiply
    539,621.76x = 744,658.46 × 297,899.12
  4. Step 4: Simplify right side
    539,621.76x = 221,833,099,934.56
  5. Step 5: Solve for x
    x = 221,833,099,934.56/539,621.76
  6. Step 6: Final answer
    x = 411,089.98

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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.