Home / 573,016.12-789,941.04-402,721.72

Finding the Fourth Proportional to 573,016.12, 789,941.04 and 402,721.72

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Solution

The fourth proportional to 573,016.12, 789,941.04 and 402,721.72 is: 555,178.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,016.12 : 789,941.04 = 402,721.72 : x
  2. Step 2: Convert to fraction form
    573,016.12/789,941.04 = 402,721.72/x
  3. Step 3: Cross multiply
    573,016.12x = 789,941.04 × 402,721.72
  4. Step 4: Simplify right side
    573,016.12x = 318,126,414,327.39
  5. Step 5: Solve for x
    x = 318,126,414,327.39/573,016.12
  6. Step 6: Final answer
    x = 555,178.82

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1.5x scale

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.