Home / 699,144.16-964,825.68-397,340.32

Finding the Fourth Proportional to 699,144.16, 964,825.68 and 397,340.32

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Solution

The fourth proportional to 699,144.16, 964,825.68 and 397,340.32 is: 548,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,144.16 : 964,825.68 = 397,340.32 : x
  2. Step 2: Convert to fraction form
    699,144.16/964,825.68 = 397,340.32/x
  3. Step 3: Cross multiply
    699,144.16x = 964,825.68 × 397,340.32
  4. Step 4: Simplify right side
    699,144.16x = 383,364,144,435.42
  5. Step 5: Solve for x
    x = 383,364,144,435.42/699,144.16
  6. Step 6: Final answer
    x = 548,333.47

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Double scale
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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.