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Finding the Fourth Proportional to 672,737.32, 1,009,404.06 and 357,118.12

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Solution

The fourth proportional to 672,737.32, 1,009,404.06 and 357,118.12 is: 535,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,737.32 : 1,009,404.06 = 357,118.12 : x
  2. Step 2: Convert to fraction form
    672,737.32/1,009,404.06 = 357,118.12/x
  3. Step 3: Cross multiply
    672,737.32x = 1,009,404.06 × 357,118.12
  4. Step 4: Simplify right side
    672,737.32x = 360,476,480,227.57
  5. Step 5: Solve for x
    x = 360,476,480,227.57/672,737.32
  6. Step 6: Final answer
    x = 535,835.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.