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Finding the Fourth Proportional to 1,929,503.89, 2,895,990.54 and 1,031,713.03

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Solution

The fourth proportional to 1,929,503.89, 2,895,990.54 and 1,031,713.03 is: 1,548,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,503.89 : 2,895,990.54 = 1,031,713.03 : x
  2. Step 2: Convert to fraction form
    1,929,503.89/2,895,990.54 = 1,031,713.03/x
  3. Step 3: Cross multiply
    1,929,503.89x = 2,895,990.54 × 1,031,713.03
  4. Step 4: Simplify right side
    1,929,503.89x = 2,987,831,174,874.74
  5. Step 5: Solve for x
    x = 2,987,831,174,874.74/1,929,503.89
  6. Step 6: Final answer
    x = 1,548,497.10

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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.