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Finding the Fourth Proportional to 526,934.79, 790,400.97 and 407,165.87

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Solution

The fourth proportional to 526,934.79, 790,400.97 and 407,165.87 is: 610,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,934.79 : 790,400.97 = 407,165.87 : x
  2. Step 2: Convert to fraction form
    526,934.79/790,400.97 = 407,165.87/x
  3. Step 3: Cross multiply
    526,934.79x = 790,400.97 × 407,165.87
  4. Step 4: Simplify right side
    526,934.79x = 321,824,294,646.89
  5. Step 5: Solve for x
    x = 321,824,294,646.89/526,934.79
  6. Step 6: Final answer
    x = 610,747.86

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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.