Home / 563,618.40-845,542.80-189,679.20

Finding the Fourth Proportional to 563,618.40, 845,542.80 and 189,679.20

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Solution

The fourth proportional to 563,618.40, 845,542.80 and 189,679.20 is: 284,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,618.40 : 845,542.80 = 189,679.20 : x
  2. Step 2: Convert to fraction form
    563,618.40/845,542.80 = 189,679.20/x
  3. Step 3: Cross multiply
    563,618.40x = 845,542.80 × 189,679.20
  4. Step 4: Simplify right side
    563,618.40x = 160,381,881,869.76
  5. Step 5: Solve for x
    x = 160,381,881,869.76/563,618.40
  6. Step 6: Final answer
    x = 284,557.57

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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.