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Finding the Fourth Proportional to 532,321.61, 734,614.94 and 290,614.37

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Solution

The fourth proportional to 532,321.61, 734,614.94 and 290,614.37 is: 401,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,321.61 : 734,614.94 = 290,614.37 : x
  2. Step 2: Convert to fraction form
    532,321.61/734,614.94 = 290,614.37/x
  3. Step 3: Cross multiply
    532,321.61x = 734,614.94 × 290,614.37
  4. Step 4: Simplify right side
    532,321.61x = 213,489,660,543.76
  5. Step 5: Solve for x
    x = 213,489,660,543.76/532,321.61
  6. Step 6: Final answer
    x = 401,053.90

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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.