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Finding the Fourth Proportional to 634,833.76, 876,040.50 and 348,347.56

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Solution

The fourth proportional to 634,833.76, 876,040.50 and 348,347.56 is: 480,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,833.76 : 876,040.50 = 348,347.56 : x
  2. Step 2: Convert to fraction form
    634,833.76/876,040.50 = 348,347.56/x
  3. Step 3: Cross multiply
    634,833.76x = 876,040.50 × 348,347.56
  4. Step 4: Simplify right side
    634,833.76x = 305,166,570,636.18
  5. Step 5: Solve for x
    x = 305,166,570,636.18/634,833.76
  6. Step 6: Final answer
    x = 480,703.12

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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.