Home / 519,913.47-717,467.38-290,472.49

Finding the Fourth Proportional to 519,913.47, 717,467.38 and 290,472.49

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Solution

The fourth proportional to 519,913.47, 717,467.38 and 290,472.49 is: 400,844.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,913.47 : 717,467.38 = 290,472.49 : x
  2. Step 2: Convert to fraction form
    519,913.47/717,467.38 = 290,472.49/x
  3. Step 3: Cross multiply
    519,913.47x = 717,467.38 × 290,472.49
  4. Step 4: Simplify right side
    519,913.47x = 208,404,536,362.38
  5. Step 5: Solve for x
    x = 208,404,536,362.38/519,913.47
  6. Step 6: Final answer
    x = 400,844.66

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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.