Home / 581,945.90-803,454.26-398,491.43

Finding the Fourth Proportional to 581,945.90, 803,454.26 and 398,491.43

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Solution

The fourth proportional to 581,945.90, 803,454.26 and 398,491.43 is: 550,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,945.90 : 803,454.26 = 398,491.43 : x
  2. Step 2: Convert to fraction form
    581,945.90/803,454.26 = 398,491.43/x
  3. Step 3: Cross multiply
    581,945.90x = 803,454.26 × 398,491.43
  4. Step 4: Simplify right side
    581,945.90x = 320,169,630,997.26
  5. Step 5: Solve for x
    x = 320,169,630,997.26/581,945.90
  6. Step 6: Final answer
    x = 550,170.79

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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.