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Finding the Fourth Proportional to 689,389.65, 950,689.71 and 459,956.34

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Solution

The fourth proportional to 689,389.65, 950,689.71 and 459,956.34 is: 634,294.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,389.65 : 950,689.71 = 459,956.34 : x
  2. Step 2: Convert to fraction form
    689,389.65/950,689.71 = 459,956.34/x
  3. Step 3: Cross multiply
    689,389.65x = 950,689.71 × 459,956.34
  4. Step 4: Simplify right side
    689,389.65x = 437,275,759,487.26
  5. Step 5: Solve for x
    x = 437,275,759,487.26/689,389.65
  6. Step 6: Final answer
    x = 634,294.06

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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.