Home / 689,788.42-951,901.16-383,859.58

Finding the Fourth Proportional to 689,788.42, 951,901.16 and 383,859.58

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Solution

The fourth proportional to 689,788.42, 951,901.16 and 383,859.58 is: 529,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,788.42 : 951,901.16 = 383,859.58 : x
  2. Step 2: Convert to fraction form
    689,788.42/951,901.16 = 383,859.58/x
  3. Step 3: Cross multiply
    689,788.42x = 951,901.16 × 383,859.58
  4. Step 4: Simplify right side
    689,788.42x = 365,396,379,479.11
  5. Step 5: Solve for x
    x = 365,396,379,479.11/689,788.42
  6. Step 6: Final answer
    x = 529,722.40

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1.5x scale

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.