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Finding the Fourth Proportional to 437,561.70, 654,884.55 and 317,276.70

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Solution

The fourth proportional to 437,561.70, 654,884.55 and 317,276.70 is: 474,857.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,561.70 : 654,884.55 = 317,276.70 : x
  2. Step 2: Convert to fraction form
    437,561.70/654,884.55 = 317,276.70/x
  3. Step 3: Cross multiply
    437,561.70x = 654,884.55 × 317,276.70
  4. Step 4: Simplify right side
    437,561.70x = 207,779,608,904.99
  5. Step 5: Solve for x
    x = 207,779,608,904.99/437,561.70
  6. Step 6: Final answer
    x = 474,857.85

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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.