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Finding the Fourth Proportional to 702,963.10, 1,054,444.65 and 514,956.70

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Solution

The fourth proportional to 702,963.10, 1,054,444.65 and 514,956.70 is: 772,435.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,963.10 : 1,054,444.65 = 514,956.70 : x
  2. Step 2: Convert to fraction form
    702,963.10/1,054,444.65 = 514,956.70/x
  3. Step 3: Cross multiply
    702,963.10x = 1,054,444.65 × 514,956.70
  4. Step 4: Simplify right side
    702,963.10x = 542,993,337,296.66
  5. Step 5: Solve for x
    x = 542,993,337,296.66/702,963.10
  6. Step 6: Final answer
    x = 772,435.05

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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.