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Finding the Fourth Proportional to 634,860.24, 876,125.28 and 348,399.24

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Solution

The fourth proportional to 634,860.24, 876,125.28 and 348,399.24 is: 480,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,860.24 : 876,125.28 = 348,399.24 : x
  2. Step 2: Convert to fraction form
    634,860.24/876,125.28 = 348,399.24/x
  3. Step 3: Cross multiply
    634,860.24x = 876,125.28 × 348,399.24
  4. Step 4: Simplify right side
    634,860.24x = 305,241,381,696.79
  5. Step 5: Solve for x
    x = 305,241,381,696.79/634,860.24
  6. Step 6: Final answer
    x = 480,800.91

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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.