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Finding the Fourth Proportional to 5,774,429.40, 8,661,644.10 and 3,506,947.80

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Solution

The fourth proportional to 5,774,429.40, 8,661,644.10 and 3,506,947.80 is: 5,260,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774,429.40 : 8,661,644.10 = 3,506,947.80 : x
  2. Step 2: Convert to fraction form
    5,774,429.40/8,661,644.10 = 3,506,947.80/x
  3. Step 3: Cross multiply
    5,774,429.40x = 8,661,644.10 × 3,506,947.80
  4. Step 4: Simplify right side
    5,774,429.40x = 30,375,933,720,877.98
  5. Step 5: Solve for x
    x = 30,375,933,720,877.98/5,774,429.40
  6. Step 6: Final answer
    x = 5,260,421.70

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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.