Home / 436,139.40-653,723.10-169,811.40

Finding the Fourth Proportional to 436,139.40, 653,723.10 and 169,811.40

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Solution

The fourth proportional to 436,139.40, 653,723.10 and 169,811.40 is: 254,527.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,139.40 : 653,723.10 = 169,811.40 : x
  2. Step 2: Convert to fraction form
    436,139.40/653,723.10 = 169,811.40/x
  3. Step 3: Cross multiply
    436,139.40x = 653,723.10 × 169,811.40
  4. Step 4: Simplify right side
    436,139.40x = 111,009,634,823.34
  5. Step 5: Solve for x
    x = 111,009,634,823.34/436,139.40
  6. Step 6: Final answer
    x = 254,527.88

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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.