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Finding the Fourth Proportional to 452,923.68, 679,384.72 and 120,499.68

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Solution

The fourth proportional to 452,923.68, 679,384.72 and 120,499.68 is: 180,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,923.68 : 679,384.72 = 120,499.68 : x
  2. Step 2: Convert to fraction form
    452,923.68/679,384.72 = 120,499.68/x
  3. Step 3: Cross multiply
    452,923.68x = 679,384.72 × 120,499.68
  4. Step 4: Simplify right side
    452,923.68x = 81,865,641,356.89
  5. Step 5: Solve for x
    x = 81,865,641,356.89/452,923.68
  6. Step 6: Final answer
    x = 180,749.31

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Similar ratio
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1.5x scale

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.