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Finding the Fourth Proportional to 566,215.36, 781,353.60 and 308,093.32

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Solution

The fourth proportional to 566,215.36, 781,353.60 and 308,093.32 is: 425,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,215.36 : 781,353.60 = 308,093.32 : x
  2. Step 2: Convert to fraction form
    566,215.36/781,353.60 = 308,093.32/x
  3. Step 3: Cross multiply
    566,215.36x = 781,353.60 × 308,093.32
  4. Step 4: Simplify right side
    566,215.36x = 240,729,824,717.95
  5. Step 5: Solve for x
    x = 240,729,824,717.95/566,215.36
  6. Step 6: Final answer
    x = 425,155.94

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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.