Home / 637,080.54-879,125.85-378,943.26

Finding the Fourth Proportional to 637,080.54, 879,125.85 and 378,943.26

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Solution

The fourth proportional to 637,080.54, 879,125.85 and 378,943.26 is: 522,914.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,080.54 : 879,125.85 = 378,943.26 : x
  2. Step 2: Convert to fraction form
    637,080.54/879,125.85 = 378,943.26/x
  3. Step 3: Cross multiply
    637,080.54x = 879,125.85 × 378,943.26
  4. Step 4: Simplify right side
    637,080.54x = 333,138,815,549.27
  5. Step 5: Solve for x
    x = 333,138,815,549.27/637,080.54
  6. Step 6: Final answer
    x = 522,914.76

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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.