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Finding the Fourth Proportional to 615,047.76, 922,610.48 and 260,015.04

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Solution

The fourth proportional to 615,047.76, 922,610.48 and 260,015.04 is: 390,038.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,047.76 : 922,610.48 = 260,015.04 : x
  2. Step 2: Convert to fraction form
    615,047.76/922,610.48 = 260,015.04/x
  3. Step 3: Cross multiply
    615,047.76x = 922,610.48 × 260,015.04
  4. Step 4: Simplify right side
    615,047.76x = 239,892,600,861.62
  5. Step 5: Solve for x
    x = 239,892,600,861.62/615,047.76
  6. Step 6: Final answer
    x = 390,038.98

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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.