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Finding the Fourth Proportional to 611,088.27, 843,291.27 and 339,167.62

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Solution

The fourth proportional to 611,088.27, 843,291.27 and 339,167.62 is: 468,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,088.27 : 843,291.27 = 339,167.62 : x
  2. Step 2: Convert to fraction form
    611,088.27/843,291.27 = 339,167.62/x
  3. Step 3: Cross multiply
    611,088.27x = 843,291.27 × 339,167.62
  4. Step 4: Simplify right side
    611,088.27x = 286,017,094,066.79
  5. Step 5: Solve for x
    x = 286,017,094,066.79/611,088.27
  6. Step 6: Final answer
    x = 468,045.47

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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.