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Finding the Fourth Proportional to 468,047.30, 701,086.80 and 389,315.30

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Solution

The fourth proportional to 468,047.30, 701,086.80 and 389,315.30 is: 583,154.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,047.30 : 701,086.80 = 389,315.30 : x
  2. Step 2: Convert to fraction form
    468,047.30/701,086.80 = 389,315.30/x
  3. Step 3: Cross multiply
    468,047.30x = 701,086.80 × 389,315.30
  4. Step 4: Simplify right side
    468,047.30x = 272,943,817,868.04
  5. Step 5: Solve for x
    x = 272,943,817,868.04/468,047.30
  6. Step 6: Final answer
    x = 583,154.35

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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.