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Finding the Fourth Proportional to 869,717.10, 1,302,502.05 and 869,717.10

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Solution

The fourth proportional to 869,717.10, 1,302,502.05 and 869,717.10 is: 1,302,502.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,717.10 : 1,302,502.05 = 869,717.10 : x
  2. Step 2: Convert to fraction form
    869,717.10/1,302,502.05 = 869,717.10/x
  3. Step 3: Cross multiply
    869,717.10x = 1,302,502.05 × 869,717.10
  4. Step 4: Simplify right side
    869,717.10x = 1,132,808,305,670.06
  5. Step 5: Solve for x
    x = 1,132,808,305,670.06/869,717.10
  6. Step 6: Final answer
    x = 1,302,502.05

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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.