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Finding the Fourth Proportional to 719,060.73, 992,302.77 and 396,770.76

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Solution

The fourth proportional to 719,060.73, 992,302.77 and 396,770.76 is: 547,543.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,060.73 : 992,302.77 = 396,770.76 : x
  2. Step 2: Convert to fraction form
    719,060.73/992,302.77 = 396,770.76/x
  3. Step 3: Cross multiply
    719,060.73x = 992,302.77 × 396,770.76
  4. Step 4: Simplify right side
    719,060.73x = 393,716,724,203.01
  5. Step 5: Solve for x
    x = 393,716,724,203.01/719,060.73
  6. Step 6: Final answer
    x = 547,543.08

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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.