Home / 535,811.40-804,638.70-379,139.40

Finding the Fourth Proportional to 535,811.40, 804,638.70 and 379,139.40

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Solution

The fourth proportional to 535,811.40, 804,638.70 and 379,139.40 is: 569,361.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,811.40 : 804,638.70 = 379,139.40 : x
  2. Step 2: Convert to fraction form
    535,811.40/804,638.70 = 379,139.40/x
  3. Step 3: Cross multiply
    535,811.40x = 804,638.70 × 379,139.40
  4. Step 4: Simplify right side
    535,811.40x = 305,070,233,934.78
  5. Step 5: Solve for x
    x = 305,070,233,934.78/535,811.40
  6. Step 6: Final answer
    x = 569,361.22

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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.