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Finding the Fourth Proportional to 654,656.22, 903,319.97 and 368,159.22

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Solution

The fourth proportional to 654,656.22, 903,319.97 and 368,159.22 is: 508,000.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,656.22 : 903,319.97 = 368,159.22 : x
  2. Step 2: Convert to fraction form
    654,656.22/903,319.97 = 368,159.22/x
  3. Step 3: Cross multiply
    654,656.22x = 903,319.97 × 368,159.22
  4. Step 4: Simplify right side
    654,656.22x = 332,565,573,724.83
  5. Step 5: Solve for x
    x = 332,565,573,724.83/654,656.22
  6. Step 6: Final answer
    x = 508,000.33

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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.