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Finding the Fourth Proportional to 456,521.73, 684,411.50 and 190,480.47

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Solution

The fourth proportional to 456,521.73, 684,411.50 and 190,480.47 is: 285,565.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,521.73 : 684,411.50 = 190,480.47 : x
  2. Step 2: Convert to fraction form
    456,521.73/684,411.50 = 190,480.47/x
  3. Step 3: Cross multiply
    456,521.73x = 684,411.50 × 190,480.47
  4. Step 4: Simplify right side
    456,521.73x = 130,367,023,241.00
  5. Step 5: Solve for x
    x = 130,367,023,241.00/456,521.73
  6. Step 6: Final answer
    x = 285,565.87

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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.