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Finding the Fourth Proportional to 708,251.04, 977,373.72 and 385,963.80

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Solution

The fourth proportional to 708,251.04, 977,373.72 and 385,963.80 is: 532,623.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,251.04 : 977,373.72 = 385,963.80 : x
  2. Step 2: Convert to fraction form
    708,251.04/977,373.72 = 385,963.80/x
  3. Step 3: Cross multiply
    708,251.04x = 977,373.72 × 385,963.80
  4. Step 4: Simplify right side
    708,251.04x = 377,230,874,991.34
  5. Step 5: Solve for x
    x = 377,230,874,991.34/708,251.04
  6. Step 6: Final answer
    x = 532,623.11

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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.