Home / 685,919.52-946,618.80-414,053.64

Finding the Fourth Proportional to 685,919.52, 946,618.80 and 414,053.64

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Solution

The fourth proportional to 685,919.52, 946,618.80 and 414,053.64 is: 571,424.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,919.52 : 946,618.80 = 414,053.64 : x
  2. Step 2: Convert to fraction form
    685,919.52/946,618.80 = 414,053.64/x
  3. Step 3: Cross multiply
    685,919.52x = 946,618.80 × 414,053.64
  4. Step 4: Simplify right side
    685,919.52x = 391,950,959,832.43
  5. Step 5: Solve for x
    x = 391,950,959,832.43/685,919.52
  6. Step 6: Final answer
    x = 571,424.12

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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.