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Finding the Fourth Proportional to 812,793.54, 1,121,603.17 and 468,611.62

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Solution

The fourth proportional to 812,793.54, 1,121,603.17 and 468,611.62 is: 646,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,793.54 : 1,121,603.17 = 468,611.62 : x
  2. Step 2: Convert to fraction form
    812,793.54/1,121,603.17 = 468,611.62/x
  3. Step 3: Cross multiply
    812,793.54x = 1,121,603.17 × 468,611.62
  4. Step 4: Simplify right side
    812,793.54x = 525,596,278,490.84
  5. Step 5: Solve for x
    x = 525,596,278,490.84/812,793.54
  6. Step 6: Final answer
    x = 646,654.10

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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.