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Finding the Fourth Proportional to 633,315.07, 873,976.13 and 342,929.80

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Solution

The fourth proportional to 633,315.07, 873,976.13 and 342,929.80 is: 473,243.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,315.07 : 873,976.13 = 342,929.80 : x
  2. Step 2: Convert to fraction form
    633,315.07/873,976.13 = 342,929.80/x
  3. Step 3: Cross multiply
    633,315.07x = 873,976.13 × 342,929.80
  4. Step 4: Simplify right side
    633,315.07x = 299,712,459,465.67
  5. Step 5: Solve for x
    x = 299,712,459,465.67/633,315.07
  6. Step 6: Final answer
    x = 473,243.85

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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.