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Finding the Fourth Proportional to 330,663.61, 456,319.61 and 183,491.49

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Solution

The fourth proportional to 330,663.61, 456,319.61 and 183,491.49 is: 253,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,663.61 : 456,319.61 = 183,491.49 : x
  2. Step 2: Convert to fraction form
    330,663.61/456,319.61 = 183,491.49/x
  3. Step 3: Cross multiply
    330,663.61x = 456,319.61 × 183,491.49
  4. Step 4: Simplify right side
    330,663.61x = 83,730,765,869.62
  5. Step 5: Solve for x
    x = 83,730,765,869.62/330,663.61
  6. Step 6: Final answer
    x = 253,220.38

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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.