Home / 677,207.07-934,556.31-371,311.38

Finding the Fourth Proportional to 677,207.07, 934,556.31 and 371,311.38

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Solution

The fourth proportional to 677,207.07, 934,556.31 and 371,311.38 is: 512,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,207.07 : 934,556.31 = 371,311.38 : x
  2. Step 2: Convert to fraction form
    677,207.07/934,556.31 = 371,311.38/x
  3. Step 3: Cross multiply
    677,207.07x = 934,556.31 × 371,311.38
  4. Step 4: Simplify right side
    677,207.07x = 347,011,393,153.81
  5. Step 5: Solve for x
    x = 347,011,393,153.81/677,207.07
  6. Step 6: Final answer
    x = 512,415.49

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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.