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Finding the Fourth Proportional to 634,937.22, 876,234.51 and 348,472.89

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Solution

The fourth proportional to 634,937.22, 876,234.51 and 348,472.89 is: 480,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,937.22 : 876,234.51 = 348,472.89 : x
  2. Step 2: Convert to fraction form
    634,937.22/876,234.51 = 348,472.89/x
  3. Step 3: Cross multiply
    634,937.22x = 876,234.51 × 348,472.89
  4. Step 4: Simplify right side
    634,937.22x = 305,343,972,017.43
  5. Step 5: Solve for x
    x = 305,343,972,017.43/634,937.22
  6. Step 6: Final answer
    x = 480,904.19

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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.