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Finding the Fourth Proportional to 462,668.61, 638,484.39 and 269,122.76

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Solution

The fourth proportional to 462,668.61, 638,484.39 and 269,122.76 is: 371,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,668.61 : 638,484.39 = 269,122.76 : x
  2. Step 2: Convert to fraction form
    462,668.61/638,484.39 = 269,122.76/x
  3. Step 3: Cross multiply
    462,668.61x = 638,484.39 × 269,122.76
  4. Step 4: Simplify right side
    462,668.61x = 171,830,681,253.72
  5. Step 5: Solve for x
    x = 171,830,681,253.72/462,668.61
  6. Step 6: Final answer
    x = 371,390.40

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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.