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Finding the Fourth Proportional to 480,088.27, 719,873.61 and 239,678.65

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Solution

The fourth proportional to 480,088.27, 719,873.61 and 239,678.65 is: 359,388.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,088.27 : 719,873.61 = 239,678.65 : x
  2. Step 2: Convert to fraction form
    480,088.27/719,873.61 = 239,678.65/x
  3. Step 3: Cross multiply
    480,088.27x = 719,873.61 × 239,678.65
  4. Step 4: Simplify right side
    480,088.27x = 172,538,335,015.43
  5. Step 5: Solve for x
    x = 172,538,335,015.43/480,088.27
  6. Step 6: Final answer
    x = 359,388.77

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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.