Home / 699,141.16-964,821.54-397,337.32

Finding the Fourth Proportional to 699,141.16, 964,821.54 and 397,337.32

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Solution

The fourth proportional to 699,141.16, 964,821.54 and 397,337.32 is: 548,329.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,141.16 : 964,821.54 = 397,337.32 : x
  2. Step 2: Convert to fraction form
    699,141.16/964,821.54 = 397,337.32/x
  3. Step 3: Cross multiply
    699,141.16x = 964,821.54 × 397,337.32
  4. Step 4: Simplify right side
    699,141.16x = 383,359,604,981.87
  5. Step 5: Solve for x
    x = 383,359,604,981.87/699,141.16
  6. Step 6: Final answer
    x = 548,329.33

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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.