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Finding the Fourth Proportional to 1,291,793.76, 1,937,822.76 and 493,747.02

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Solution

The fourth proportional to 1,291,793.76, 1,937,822.76 and 493,747.02 is: 740,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,793.76 : 1,937,822.76 = 493,747.02 : x
  2. Step 2: Convert to fraction form
    1,291,793.76/1,937,822.76 = 493,747.02/x
  3. Step 3: Cross multiply
    1,291,793.76x = 1,937,822.76 × 493,747.02
  4. Step 4: Simplify right side
    1,291,793.76x = 956,794,213,038.18
  5. Step 5: Solve for x
    x = 956,794,213,038.18/1,291,793.76
  6. Step 6: Final answer
    x = 740,671.03

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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.