Home / 714,222.46-985,624.10-391,937.94

Finding the Fourth Proportional to 714,222.46, 985,624.10 and 391,937.94

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Solution

The fourth proportional to 714,222.46, 985,624.10 and 391,937.94 is: 540,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,222.46 : 985,624.10 = 391,937.94 : x
  2. Step 2: Convert to fraction form
    714,222.46/985,624.10 = 391,937.94/x
  3. Step 3: Cross multiply
    714,222.46x = 985,624.10 × 391,937.94
  4. Step 4: Simplify right side
    714,222.46x = 386,303,478,878.43
  5. Step 5: Solve for x
    x = 386,303,478,878.43/714,222.46
  6. Step 6: Final answer
    x = 540,872.77

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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.