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Finding the Fourth Proportional to 517,626.39, 714,139.53 and 299,716.12

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Solution

The fourth proportional to 517,626.39, 714,139.53 and 299,716.12 is: 413,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,626.39 : 714,139.53 = 299,716.12 : x
  2. Step 2: Convert to fraction form
    517,626.39/714,139.53 = 299,716.12/x
  3. Step 3: Cross multiply
    517,626.39x = 714,139.53 × 299,716.12
  4. Step 4: Simplify right side
    517,626.39x = 214,039,131,086.83
  5. Step 5: Solve for x
    x = 214,039,131,086.83/517,626.39
  6. Step 6: Final answer
    x = 413,501.20

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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.