Home / 781,151.16-1,078,042.86-437,100.42

Finding the Fourth Proportional to 781,151.16, 1,078,042.86 and 437,100.42

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Solution

The fourth proportional to 781,151.16, 1,078,042.86 and 437,100.42 is: 603,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,151.16 : 1,078,042.86 = 437,100.42 : x
  2. Step 2: Convert to fraction form
    781,151.16/1,078,042.86 = 437,100.42/x
  3. Step 3: Cross multiply
    781,151.16x = 1,078,042.86 × 437,100.42
  4. Step 4: Simplify right side
    781,151.16x = 471,212,986,884.00
  5. Step 5: Solve for x
    x = 471,212,986,884.00/781,151.16
  6. Step 6: Final answer
    x = 603,228.94

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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.