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Finding the Fourth Proportional to 443,988.48, 612,764.16 and 250,435.92

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Solution

The fourth proportional to 443,988.48, 612,764.16 and 250,435.92 is: 345,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,988.48 : 612,764.16 = 250,435.92 : x
  2. Step 2: Convert to fraction form
    443,988.48/612,764.16 = 250,435.92/x
  3. Step 3: Cross multiply
    443,988.48x = 612,764.16 × 250,435.92
  4. Step 4: Simplify right side
    443,988.48x = 153,458,156,152.63
  5. Step 5: Solve for x
    x = 153,458,156,152.63/443,988.48
  6. Step 6: Final answer
    x = 345,635.45

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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.