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Finding the Fourth Proportional to 207,637.20, 291,479.40 and 207,637.20

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Solution

The fourth proportional to 207,637.20, 291,479.40 and 207,637.20 is: 291,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,637.20 : 291,479.40 = 207,637.20 : x
  2. Step 2: Convert to fraction form
    207,637.20/291,479.40 = 207,637.20/x
  3. Step 3: Cross multiply
    207,637.20x = 291,479.40 × 207,637.20
  4. Step 4: Simplify right side
    207,637.20x = 60,521,966,473.68
  5. Step 5: Solve for x
    x = 60,521,966,473.68/207,637.20
  6. Step 6: Final answer
    x = 291,479.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.