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Finding the Fourth Proportional to 207,639.45, 291,482.55 and 207,639.45

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Solution

The fourth proportional to 207,639.45, 291,482.55 and 207,639.45 is: 291,482.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,639.45 : 291,482.55 = 207,639.45 : x
  2. Step 2: Convert to fraction form
    207,639.45/291,482.55 = 207,639.45/x
  3. Step 3: Cross multiply
    207,639.45x = 291,482.55 × 207,639.45
  4. Step 4: Simplify right side
    207,639.45x = 60,523,276,366.60
  5. Step 5: Solve for x
    x = 60,523,276,366.60/207,639.45
  6. Step 6: Final answer
    x = 291,482.55

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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.