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Finding the Fourth Proportional to 402,504.48, 555,030.63 and 337,929.23

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Solution

The fourth proportional to 402,504.48, 555,030.63 and 337,929.23 is: 465,985.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,504.48 : 555,030.63 = 337,929.23 : x
  2. Step 2: Convert to fraction form
    402,504.48/555,030.63 = 337,929.23/x
  3. Step 3: Cross multiply
    402,504.48x = 555,030.63 × 337,929.23
  4. Step 4: Simplify right side
    402,504.48x = 187,561,074,809.89
  5. Step 5: Solve for x
    x = 187,561,074,809.89/402,504.48
  6. Step 6: Final answer
    x = 465,985.06

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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.