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Finding the Fourth Proportional to 374,312.94, 561,760.56 and 261,258.71

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Solution

The fourth proportional to 374,312.94, 561,760.56 and 261,258.71 is: 392,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,312.94 : 561,760.56 = 261,258.71 : x
  2. Step 2: Convert to fraction form
    374,312.94/561,760.56 = 261,258.71/x
  3. Step 3: Cross multiply
    374,312.94x = 561,760.56 × 261,258.71
  4. Step 4: Simplify right side
    374,312.94x = 146,764,837,160.47
  5. Step 5: Solve for x
    x = 146,764,837,160.47/374,312.94
  6. Step 6: Final answer
    x = 392,091.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.