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Finding the Fourth Proportional to 5,317,683.06, 7,974,851.53 and 1,722,615.91

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Solution

The fourth proportional to 5,317,683.06, 7,974,851.53 and 1,722,615.91 is: 2,583,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317,683.06 : 7,974,851.53 = 1,722,615.91 : x
  2. Step 2: Convert to fraction form
    5,317,683.06/7,974,851.53 = 1,722,615.91/x
  3. Step 3: Cross multiply
    5,317,683.06x = 7,974,851.53 × 1,722,615.91
  4. Step 4: Simplify right side
    5,317,683.06x = 13,737,606,154,155.47
  5. Step 5: Solve for x
    x = 13,737,606,154,155.47/5,317,683.06
  6. Step 6: Final answer
    x = 2,583,381.90

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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.