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Finding the Fourth Proportional to 317,760.76, 438,548.76 and 183,624.76

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Solution

The fourth proportional to 317,760.76, 438,548.76 and 183,624.76 is: 253,424.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,760.76 : 438,548.76 = 183,624.76 : x
  2. Step 2: Convert to fraction form
    317,760.76/438,548.76 = 183,624.76/x
  3. Step 3: Cross multiply
    317,760.76x = 438,548.76 × 183,624.76
  4. Step 4: Simplify right side
    317,760.76x = 80,528,410,803.30
  5. Step 5: Solve for x
    x = 80,528,410,803.30/317,760.76
  6. Step 6: Final answer
    x = 253,424.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.