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Finding the Fourth Proportional to 634,471.05, 875,602.19 and 348,017.85

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Solution

The fourth proportional to 634,471.05, 875,602.19 and 348,017.85 is: 480,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,471.05 : 875,602.19 = 348,017.85 : x
  2. Step 2: Convert to fraction form
    634,471.05/875,602.19 = 348,017.85/x
  3. Step 3: Cross multiply
    634,471.05x = 875,602.19 × 348,017.85
  4. Step 4: Simplify right side
    634,471.05x = 304,725,189,879.00
  5. Step 5: Solve for x
    x = 304,725,189,879.00/634,471.05
  6. Step 6: Final answer
    x = 480,282.26

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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.