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Finding the Fourth Proportional to 583,568.71, 805,330.97 and 328,919.90

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Solution

The fourth proportional to 583,568.71, 805,330.97 and 328,919.90 is: 453,912.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,568.71 : 805,330.97 = 328,919.90 : x
  2. Step 2: Convert to fraction form
    583,568.71/805,330.97 = 328,919.90/x
  3. Step 3: Cross multiply
    583,568.71x = 805,330.97 × 328,919.90
  4. Step 4: Simplify right side
    583,568.71x = 264,889,377,681.50
  5. Step 5: Solve for x
    x = 264,889,377,681.50/583,568.71
  6. Step 6: Final answer
    x = 453,912.92

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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.