Home / 719,111.20-1,077,638.76-528,072.70

Finding the Fourth Proportional to 719,111.20, 1,077,638.76 and 528,072.70

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Solution

The fourth proportional to 719,111.20, 1,077,638.76 and 528,072.70 is: 791,354.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,111.20 : 1,077,638.76 = 528,072.70 : x
  2. Step 2: Convert to fraction form
    719,111.20/1,077,638.76 = 528,072.70/x
  3. Step 3: Cross multiply
    719,111.20x = 1,077,638.76 × 528,072.70
  4. Step 4: Simplify right side
    719,111.20x = 569,071,609,617.85
  5. Step 5: Solve for x
    x = 569,071,609,617.85/719,111.20
  6. Step 6: Final answer
    x = 791,354.12

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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.