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Finding the Fourth Proportional to 520,007.11, 717,601.08 and 290,568.13

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Solution

The fourth proportional to 520,007.11, 717,601.08 and 290,568.13 is: 400,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,007.11 : 717,601.08 = 290,568.13 : x
  2. Step 2: Convert to fraction form
    520,007.11/717,601.08 = 290,568.13/x
  3. Step 3: Cross multiply
    520,007.11x = 717,601.08 × 290,568.13
  4. Step 4: Simplify right side
    520,007.11x = 208,512,003,901.58
  5. Step 5: Solve for x
    x = 208,512,003,901.58/520,007.11
  6. Step 6: Final answer
    x = 400,979.14

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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.