Home / 351,743.40-527,615.10-127,211.40

Finding the Fourth Proportional to 351,743.40, 527,615.10 and 127,211.40

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Solution

The fourth proportional to 351,743.40, 527,615.10 and 127,211.40 is: 190,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,743.40 : 527,615.10 = 127,211.40 : x
  2. Step 2: Convert to fraction form
    351,743.40/527,615.10 = 127,211.40/x
  3. Step 3: Cross multiply
    351,743.40x = 527,615.10 × 127,211.40
  4. Step 4: Simplify right side
    351,743.40x = 67,118,655,532.14
  5. Step 5: Solve for x
    x = 67,118,655,532.14/351,743.40
  6. Step 6: Final answer
    x = 190,817.10

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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.