Home / 767,059.47-1,058,543.24-427,520.43

Finding the Fourth Proportional to 767,059.47, 1,058,543.24 and 427,520.43

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Solution

The fourth proportional to 767,059.47, 1,058,543.24 and 427,520.43 is: 589,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,059.47 : 1,058,543.24 = 427,520.43 : x
  2. Step 2: Convert to fraction form
    767,059.47/1,058,543.24 = 427,520.43/x
  3. Step 3: Cross multiply
    767,059.47x = 1,058,543.24 × 427,520.43
  4. Step 4: Simplify right side
    767,059.47x = 452,548,859,000.79
  5. Step 5: Solve for x
    x = 452,548,859,000.79/767,059.47
  6. Step 6: Final answer
    x = 589,978.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.