Home / 554,738.50-831,968.55-155,275.78

Finding the Fourth Proportional to 554,738.50, 831,968.55 and 155,275.78

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Solution

The fourth proportional to 554,738.50, 831,968.55 and 155,275.78 is: 232,874.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,738.50 : 831,968.55 = 155,275.78 : x
  2. Step 2: Convert to fraction form
    554,738.50/831,968.55 = 155,275.78/x
  3. Step 3: Cross multiply
    554,738.50x = 831,968.55 × 155,275.78
  4. Step 4: Simplify right side
    554,738.50x = 129,184,565,536.72
  5. Step 5: Solve for x
    x = 129,184,565,536.72/554,738.50
  6. Step 6: Final answer
    x = 232,874.71

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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.