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Finding the Fourth Proportional to 845,950.64, 1,167,396 and 478,422.88

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Solution

The fourth proportional to 845,950.64, 1,167,396 and 478,422.88 is: 660,214.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,950.64 : 1,167,396 = 478,422.88 : x
  2. Step 2: Convert to fraction form
    845,950.64/1,167,396 = 478,422.88/x
  3. Step 3: Cross multiply
    845,950.64x = 1,167,396 × 478,422.88
  4. Step 4: Simplify right side
    845,950.64x = 558,508,956,420.48
  5. Step 5: Solve for x
    x = 558,508,956,420.48/845,950.64
  6. Step 6: Final answer
    x = 660,214.59

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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.