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Finding the Fourth Proportional to 761,793.15, 1,051,267.82 and 417,622.81

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Solution

The fourth proportional to 761,793.15, 1,051,267.82 and 417,622.81 is: 576,315.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,793.15 : 1,051,267.82 = 417,622.81 : x
  2. Step 2: Convert to fraction form
    761,793.15/1,051,267.82 = 417,622.81/x
  3. Step 3: Cross multiply
    761,793.15x = 1,051,267.82 × 417,622.81
  4. Step 4: Simplify right side
    761,793.15x = 439,033,421,050.97
  5. Step 5: Solve for x
    x = 439,033,421,050.97/761,793.15
  6. Step 6: Final answer
    x = 576,315.79

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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.