Home / 819,543.72-1,226,997.34-434,415.04

Finding the Fourth Proportional to 819,543.72, 1,226,997.34 and 434,415.04

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Solution

The fourth proportional to 819,543.72, 1,226,997.34 and 434,415.04 is: 650,393.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,543.72 : 1,226,997.34 = 434,415.04 : x
  2. Step 2: Convert to fraction form
    819,543.72/1,226,997.34 = 434,415.04/x
  3. Step 3: Cross multiply
    819,543.72x = 1,226,997.34 × 434,415.04
  4. Step 4: Simplify right side
    819,543.72x = 533,026,098,535.99
  5. Step 5: Solve for x
    x = 533,026,098,535.99/819,543.72
  6. Step 6: Final answer
    x = 650,393.73

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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.