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Finding the Fourth Proportional to 586,340.22, 878,364.89 and 403,938.82

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Solution

The fourth proportional to 586,340.22, 878,364.89 and 403,938.82 is: 605,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,340.22 : 878,364.89 = 403,938.82 : x
  2. Step 2: Convert to fraction form
    586,340.22/878,364.89 = 403,938.82/x
  3. Step 3: Cross multiply
    586,340.22x = 878,364.89 × 403,938.82
  4. Step 4: Simplify right side
    586,340.22x = 354,805,677,196.03
  5. Step 5: Solve for x
    x = 354,805,677,196.03/586,340.22
  6. Step 6: Final answer
    x = 605,119.12

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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.