Home / 345,111.20-517,740.40-195,421.60

Finding the Fourth Proportional to 345,111.20, 517,740.40 and 195,421.60

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Solution

The fourth proportional to 345,111.20, 517,740.40 and 195,421.60 is: 293,174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,111.20 : 517,740.40 = 195,421.60 : x
  2. Step 2: Convert to fraction form
    345,111.20/517,740.40 = 195,421.60/x
  3. Step 3: Cross multiply
    345,111.20x = 517,740.40 × 195,421.60
  4. Step 4: Simplify right side
    345,111.20x = 101,177,657,352.64
  5. Step 5: Solve for x
    x = 101,177,657,352.64/345,111.20
  6. Step 6: Final answer
    x = 293,174.08

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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.