Home / 613,962.72-921,068.63-193,140.72

Finding the Fourth Proportional to 613,962.72, 921,068.63 and 193,140.72

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Solution

The fourth proportional to 613,962.72, 921,068.63 and 193,140.72 is: 289,750.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,962.72 : 921,068.63 = 193,140.72 : x
  2. Step 2: Convert to fraction form
    613,962.72/921,068.63 = 193,140.72/x
  3. Step 3: Cross multiply
    613,962.72x = 921,068.63 × 193,140.72
  4. Step 4: Simplify right side
    613,962.72x = 177,895,858,367.61
  5. Step 5: Solve for x
    x = 177,895,858,367.61/613,962.72
  6. Step 6: Final answer
    x = 289,750.26

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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.