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Finding the Fourth Proportional to 615,239.84, 922,854.04 and 194,515.76

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Solution

The fourth proportional to 615,239.84, 922,854.04 and 194,515.76 is: 291,771.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,239.84 : 922,854.04 = 194,515.76 : x
  2. Step 2: Convert to fraction form
    615,239.84/922,854.04 = 194,515.76/x
  3. Step 3: Cross multiply
    615,239.84x = 922,854.04 × 194,515.76
  4. Step 4: Simplify right side
    615,239.84x = 179,509,654,959.67
  5. Step 5: Solve for x
    x = 179,509,654,959.67/615,239.84
  6. Step 6: Final answer
    x = 291,771.83

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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.