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Finding the Fourth Proportional to 680,079.78, 938,762.73 and 584,201.70

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Solution

The fourth proportional to 680,079.78, 938,762.73 and 584,201.70 is: 806,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,079.78 : 938,762.73 = 584,201.70 : x
  2. Step 2: Convert to fraction form
    680,079.78/938,762.73 = 584,201.70/x
  3. Step 3: Cross multiply
    680,079.78x = 938,762.73 × 584,201.70
  4. Step 4: Simplify right side
    680,079.78x = 548,426,782,762.64
  5. Step 5: Solve for x
    x = 548,426,782,762.64/680,079.78
  6. Step 6: Final answer
    x = 806,415.36

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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.