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Finding the Fourth Proportional to 4,986,315.34, 7,479,696.92 and 1,527,801.57

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Solution

The fourth proportional to 4,986,315.34, 7,479,696.92 and 1,527,801.57 is: 2,291,770.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986,315.34 : 7,479,696.92 = 1,527,801.57 : x
  2. Step 2: Convert to fraction form
    4,986,315.34/7,479,696.92 = 1,527,801.57/x
  3. Step 3: Cross multiply
    4,986,315.34x = 7,479,696.92 × 1,527,801.57
  4. Step 4: Simplify right side
    4,986,315.34x = 11,427,492,697,500.16
  5. Step 5: Solve for x
    x = 11,427,492,697,500.16/4,986,315.34
  6. Step 6: Final answer
    x = 2,291,770.96

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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.