Home / 583,639.38-805,434.67-328,990.50

Finding the Fourth Proportional to 583,639.38, 805,434.67 and 328,990.50

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Solution

The fourth proportional to 583,639.38, 805,434.67 and 328,990.50 is: 454,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,639.38 : 805,434.67 = 328,990.50 : x
  2. Step 2: Convert to fraction form
    583,639.38/805,434.67 = 328,990.50/x
  3. Step 3: Cross multiply
    583,639.38x = 805,434.67 × 328,990.50
  4. Step 4: Simplify right side
    583,639.38x = 264,980,353,155.68
  5. Step 5: Solve for x
    x = 264,980,353,155.68/583,639.38
  6. Step 6: Final answer
    x = 454,013.83

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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.