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Finding the Fourth Proportional to 506,428.76, 759,421.56 and 240,265.28

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Solution

The fourth proportional to 506,428.76, 759,421.56 and 240,265.28 is: 360,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,428.76 : 759,421.56 = 240,265.28 : x
  2. Step 2: Convert to fraction form
    506,428.76/759,421.56 = 240,265.28/x
  3. Step 3: Cross multiply
    506,428.76x = 759,421.56 × 240,265.28
  4. Step 4: Simplify right side
    506,428.76x = 182,462,633,751.44
  5. Step 5: Solve for x
    x = 182,462,633,751.44/506,428.76
  6. Step 6: Final answer
    x = 360,292.80

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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.