Home / 589,938.92-813,653.20-403,780.71

Finding the Fourth Proportional to 589,938.92, 813,653.20 and 403,780.71

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Solution

The fourth proportional to 589,938.92, 813,653.20 and 403,780.71 is: 556,900.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,938.92 : 813,653.20 = 403,780.71 : x
  2. Step 2: Convert to fraction form
    589,938.92/813,653.20 = 403,780.71/x
  3. Step 3: Cross multiply
    589,938.92x = 813,653.20 × 403,780.71
  4. Step 4: Simplify right side
    589,938.92x = 328,537,465,780.32
  5. Step 5: Solve for x
    x = 328,537,465,780.32/589,938.92
  6. Step 6: Final answer
    x = 556,900.82

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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.