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Finding the Fourth Proportional to 517,400.75, 776,601.65 and 373,454.98

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Solution

The fourth proportional to 517,400.75, 776,601.65 and 373,454.98 is: 560,543.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,400.75 : 776,601.65 = 373,454.98 : x
  2. Step 2: Convert to fraction form
    517,400.75/776,601.65 = 373,454.98/x
  3. Step 3: Cross multiply
    517,400.75x = 776,601.65 × 373,454.98
  4. Step 4: Simplify right side
    517,400.75x = 290,025,752,660.85
  5. Step 5: Solve for x
    x = 290,025,752,660.85/517,400.75
  6. Step 6: Final answer
    x = 560,543.74

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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.