Home / 919,762.90-1,379,865.17-288,676.71

Finding the Fourth Proportional to 919,762.90, 1,379,865.17 and 288,676.71

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Solution

The fourth proportional to 919,762.90, 1,379,865.17 and 288,676.71 is: 433,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,762.90 : 1,379,865.17 = 288,676.71 : x
  2. Step 2: Convert to fraction form
    919,762.90/1,379,865.17 = 288,676.71/x
  3. Step 3: Cross multiply
    919,762.90x = 1,379,865.17 × 288,676.71
  4. Step 4: Simplify right side
    919,762.90x = 398,334,938,240.88
  5. Step 5: Solve for x
    x = 398,334,938,240.88/919,762.90
  6. Step 6: Final answer
    x = 433,084.37

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1.5x scale

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.