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Finding the Fourth Proportional to 468,099.36, 645,973.47 and 253,238.76

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Solution

The fourth proportional to 468,099.36, 645,973.47 and 253,238.76 is: 349,467.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,099.36 : 645,973.47 = 253,238.76 : x
  2. Step 2: Convert to fraction form
    468,099.36/645,973.47 = 253,238.76/x
  3. Step 3: Cross multiply
    468,099.36x = 645,973.47 × 253,238.76
  4. Step 4: Simplify right side
    468,099.36x = 163,585,520,535.70
  5. Step 5: Solve for x
    x = 163,585,520,535.70/468,099.36
  6. Step 6: Final answer
    x = 349,467.52

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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.