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Finding the Fourth Proportional to 540,148.47, 745,170.71 and 325,163.97

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Solution

The fourth proportional to 540,148.47, 745,170.71 and 325,163.97 is: 448,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,148.47 : 745,170.71 = 325,163.97 : x
  2. Step 2: Convert to fraction form
    540,148.47/745,170.71 = 325,163.97/x
  3. Step 3: Cross multiply
    540,148.47x = 745,170.71 × 325,163.97
  4. Step 4: Simplify right side
    540,148.47x = 242,302,664,765.50
  5. Step 5: Solve for x
    x = 242,302,664,765.50/540,148.47
  6. Step 6: Final answer
    x = 448,585.31

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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.