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Finding the Fourth Proportional to 674,704.50, 930,489.56 and 559,801.23

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Solution

The fourth proportional to 674,704.50, 930,489.56 and 559,801.23 is: 772,025.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,704.50 : 930,489.56 = 559,801.23 : x
  2. Step 2: Convert to fraction form
    674,704.50/930,489.56 = 559,801.23/x
  3. Step 3: Cross multiply
    674,704.50x = 930,489.56 × 559,801.23
  4. Step 4: Simplify right side
    674,704.50x = 520,889,197,391.15
  5. Step 5: Solve for x
    x = 520,889,197,391.15/674,704.50
  6. Step 6: Final answer
    x = 772,025.68

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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.