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Finding the Fourth Proportional to 615,374.16, 923,217.12 and 188,931.76

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Solution

The fourth proportional to 615,374.16, 923,217.12 and 188,931.76 is: 283,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,374.16 : 923,217.12 = 188,931.76 : x
  2. Step 2: Convert to fraction form
    615,374.16/923,217.12 = 188,931.76/x
  3. Step 3: Cross multiply
    615,374.16x = 923,217.12 × 188,931.76
  4. Step 4: Simplify right side
    615,374.16x = 174,425,035,343.73
  5. Step 5: Solve for x
    x = 174,425,035,343.73/615,374.16
  6. Step 6: Final answer
    x = 283,445.50

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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.