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Finding the Fourth Proportional to 615,036.30, 922,678.97 and 260,049.74

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Solution

The fourth proportional to 615,036.30, 922,678.97 and 260,049.74 is: 390,127.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,036.30 : 922,678.97 = 260,049.74 : x
  2. Step 2: Convert to fraction form
    615,036.30/922,678.97 = 260,049.74/x
  3. Step 3: Cross multiply
    615,036.30x = 922,678.97 × 260,049.74
  4. Step 4: Simplify right side
    615,036.30x = 239,942,426,251.97
  5. Step 5: Solve for x
    x = 239,942,426,251.97/615,036.30
  6. Step 6: Final answer
    x = 390,127.26

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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.