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Finding the Fourth Proportional to 2,157,754.83, 2,977,707.98 and 1,177,702.89

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Solution

The fourth proportional to 2,157,754.83, 2,977,707.98 and 1,177,702.89 is: 1,625,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,754.83 : 2,977,707.98 = 1,177,702.89 : x
  2. Step 2: Convert to fraction form
    2,157,754.83/2,977,707.98 = 1,177,702.89/x
  3. Step 3: Cross multiply
    2,157,754.83x = 2,977,707.98 × 1,177,702.89
  4. Step 4: Simplify right side
    2,157,754.83x = 3,506,855,293,622.06
  5. Step 5: Solve for x
    x = 3,506,855,293,622.06/2,157,754.83
  6. Step 6: Final answer
    x = 1,625,233.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.