Home / 574,554.20-861,831.30-519,441.80

Finding the Fourth Proportional to 574,554.20, 861,831.30 and 519,441.80

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Solution

The fourth proportional to 574,554.20, 861,831.30 and 519,441.80 is: 779,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,554.20 : 861,831.30 = 519,441.80 : x
  2. Step 2: Convert to fraction form
    574,554.20/861,831.30 = 519,441.80/x
  3. Step 3: Cross multiply
    574,554.20x = 861,831.30 × 519,441.80
  4. Step 4: Simplify right side
    574,554.20x = 447,671,201,768.34
  5. Step 5: Solve for x
    x = 447,671,201,768.34/574,554.20
  6. Step 6: Final answer
    x = 779,162.70

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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.