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Finding the Fourth Proportional to 615,818.70, 923,598.45 and 260,844.30

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Solution

The fourth proportional to 615,818.70, 923,598.45 and 260,844.30 is: 391,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,818.70 : 923,598.45 = 260,844.30 : x
  2. Step 2: Convert to fraction form
    615,818.70/923,598.45 = 260,844.30/x
  3. Step 3: Cross multiply
    615,818.70x = 923,598.45 × 260,844.30
  4. Step 4: Simplify right side
    615,818.70x = 240,915,391,171.34
  5. Step 5: Solve for x
    x = 240,915,391,171.34/615,818.70
  6. Step 6: Final answer
    x = 391,211.55

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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.