Home / 347,938.74-521,070.57-197,811.78

Finding the Fourth Proportional to 347,938.74, 521,070.57 and 197,811.78

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Solution

The fourth proportional to 347,938.74, 521,070.57 and 197,811.78 is: 296,241.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,938.74 : 521,070.57 = 197,811.78 : x
  2. Step 2: Convert to fraction form
    347,938.74/521,070.57 = 197,811.78/x
  3. Step 3: Cross multiply
    347,938.74x = 521,070.57 × 197,811.78
  4. Step 4: Simplify right side
    347,938.74x = 103,073,896,957.32
  5. Step 5: Solve for x
    x = 103,073,896,957.32/347,938.74
  6. Step 6: Final answer
    x = 296,241.51

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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.