Home / 705,911.20-974,163.71-383,621.32

Finding the Fourth Proportional to 705,911.20, 974,163.71 and 383,621.32

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Solution

The fourth proportional to 705,911.20, 974,163.71 and 383,621.32 is: 529,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,911.20 : 974,163.71 = 383,621.32 : x
  2. Step 2: Convert to fraction form
    705,911.20/974,163.71 = 383,621.32/x
  3. Step 3: Cross multiply
    705,911.20x = 974,163.71 × 383,621.32
  4. Step 4: Simplify right side
    705,911.20x = 373,709,965,023.38
  5. Step 5: Solve for x
    x = 373,709,965,023.38/705,911.20
  6. Step 6: Final answer
    x = 529,400.81

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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.