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Finding the Fourth Proportional to 615,989.54, 850,056.60 and 344,061.30

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Solution

The fourth proportional to 615,989.54, 850,056.60 and 344,061.30 is: 474,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,989.54 : 850,056.60 = 344,061.30 : x
  2. Step 2: Convert to fraction form
    615,989.54/850,056.60 = 344,061.30/x
  3. Step 3: Cross multiply
    615,989.54x = 850,056.60 × 344,061.30
  4. Step 4: Simplify right side
    615,989.54x = 292,471,578,869.58
  5. Step 5: Solve for x
    x = 292,471,578,869.58/615,989.54
  6. Step 6: Final answer
    x = 474,799.59

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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.