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Finding the Fourth Proportional to 615,856.74, 923,653.08 and 359,518.56

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Solution

The fourth proportional to 615,856.74, 923,653.08 and 359,518.56 is: 539,200.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,856.74 : 923,653.08 = 359,518.56 : x
  2. Step 2: Convert to fraction form
    615,856.74/923,653.08 = 359,518.56/x
  3. Step 3: Cross multiply
    615,856.74x = 923,653.08 × 359,518.56
  4. Step 4: Simplify right side
    615,856.74x = 332,070,425,261.17
  5. Step 5: Solve for x
    x = 332,070,425,261.17/615,856.74
  6. Step 6: Final answer
    x = 539,200.76

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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.