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Finding the Fourth Proportional to 634,509.24, 875,647.26 and 348,041.40

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Solution

The fourth proportional to 634,509.24, 875,647.26 and 348,041.40 is: 480,310.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,509.24 : 875,647.26 = 348,041.40 : x
  2. Step 2: Convert to fraction form
    634,509.24/875,647.26 = 348,041.40/x
  3. Step 3: Cross multiply
    634,509.24x = 875,647.26 × 348,041.40
  4. Step 4: Simplify right side
    634,509.24x = 304,761,498,276.56
  5. Step 5: Solve for x
    x = 304,761,498,276.56/634,509.24
  6. Step 6: Final answer
    x = 480,310.58

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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.