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Finding the Fourth Proportional to 443,510.08, 612,044.16 and 239,561

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Solution

The fourth proportional to 443,510.08, 612,044.16 and 239,561 is: 330,594.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,510.08 : 612,044.16 = 239,561 : x
  2. Step 2: Convert to fraction form
    443,510.08/612,044.16 = 239,561/x
  3. Step 3: Cross multiply
    443,510.08x = 612,044.16 × 239,561
  4. Step 4: Simplify right side
    443,510.08x = 146,621,911,013.76
  5. Step 5: Solve for x
    x = 146,621,911,013.76/443,510.08
  6. Step 6: Final answer
    x = 330,594.31

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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.