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Finding the Fourth Proportional to 364,543.20, 546,620.40 and 153,943.20

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Solution

The fourth proportional to 364,543.20, 546,620.40 and 153,943.20 is: 230,832.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,543.20 : 546,620.40 = 153,943.20 : x
  2. Step 2: Convert to fraction form
    364,543.20/546,620.40 = 153,943.20/x
  3. Step 3: Cross multiply
    364,543.20x = 546,620.40 × 153,943.20
  4. Step 4: Simplify right side
    364,543.20x = 84,148,493,561.28
  5. Step 5: Solve for x
    x = 84,148,493,561.28/364,543.20
  6. Step 6: Final answer
    x = 230,832.71

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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.