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Finding the Fourth Proportional to 468,289.47, 646,240.26 and 253,429.68

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Solution

The fourth proportional to 468,289.47, 646,240.26 and 253,429.68 is: 349,733.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,289.47 : 646,240.26 = 253,429.68 : x
  2. Step 2: Convert to fraction form
    468,289.47/646,240.26 = 253,429.68/x
  3. Step 3: Cross multiply
    468,289.47x = 646,240.26 × 253,429.68
  4. Step 4: Simplify right side
    468,289.47x = 163,776,462,294.92
  5. Step 5: Solve for x
    x = 163,776,462,294.92/468,289.47
  6. Step 6: Final answer
    x = 349,733.39

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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.