Home / 591,917.92-817,068.86-387,981.98

Finding the Fourth Proportional to 591,917.92, 817,068.86 and 387,981.98

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Solution

The fourth proportional to 591,917.92, 817,068.86 and 387,981.98 is: 535,560.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,917.92 : 817,068.86 = 387,981.98 : x
  2. Step 2: Convert to fraction form
    591,917.92/817,068.86 = 387,981.98/x
  3. Step 3: Cross multiply
    591,917.92x = 817,068.86 × 387,981.98
  4. Step 4: Simplify right side
    591,917.92x = 317,007,994,099.14
  5. Step 5: Solve for x
    x = 317,007,994,099.14/591,917.92
  6. Step 6: Final answer
    x = 535,560.73

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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.