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Finding the Fourth Proportional to 535,582.28, 803,340.42 and 220,031

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Solution

The fourth proportional to 535,582.28, 803,340.42 and 220,031 is: 330,032.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,582.28 : 803,340.42 = 220,031 : x
  2. Step 2: Convert to fraction form
    535,582.28/803,340.42 = 220,031/x
  3. Step 3: Cross multiply
    535,582.28x = 803,340.42 × 220,031
  4. Step 4: Simplify right side
    535,582.28x = 176,759,795,953.02
  5. Step 5: Solve for x
    x = 176,759,795,953.02/535,582.28
  6. Step 6: Final answer
    x = 330,032.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.