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Finding the Fourth Proportional to 706,994.28, 975,643.91 and 384,698.83

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Solution

The fourth proportional to 706,994.28, 975,643.91 and 384,698.83 is: 530,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,994.28 : 975,643.91 = 384,698.83 : x
  2. Step 2: Convert to fraction form
    706,994.28/975,643.91 = 384,698.83/x
  3. Step 3: Cross multiply
    706,994.28x = 975,643.91 × 384,698.83
  4. Step 4: Simplify right side
    706,994.28x = 375,329,063,871.91
  5. Step 5: Solve for x
    x = 375,329,063,871.91/706,994.28
  6. Step 6: Final answer
    x = 530,879.91

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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.