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Finding the Fourth Proportional to 571,615.22, 788,894.03 and 329,962.66

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Solution

The fourth proportional to 571,615.22, 788,894.03 and 329,962.66 is: 455,386.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,615.22 : 788,894.03 = 329,962.66 : x
  2. Step 2: Convert to fraction form
    571,615.22/788,894.03 = 329,962.66/x
  3. Step 3: Cross multiply
    571,615.22x = 788,894.03 × 329,962.66
  4. Step 4: Simplify right side
    571,615.22x = 260,305,572,596.92
  5. Step 5: Solve for x
    x = 260,305,572,596.92/571,615.22
  6. Step 6: Final answer
    x = 455,386.01

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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.