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Finding the Fourth Proportional to 521,141.69, 718,192.66 and 417,658.34

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Solution

The fourth proportional to 521,141.69, 718,192.66 and 417,658.34 is: 575,580.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,141.69 : 718,192.66 = 417,658.34 : x
  2. Step 2: Convert to fraction form
    521,141.69/718,192.66 = 417,658.34/x
  3. Step 3: Cross multiply
    521,141.69x = 718,192.66 × 417,658.34
  4. Step 4: Simplify right side
    521,141.69x = 299,959,154,175.78
  5. Step 5: Solve for x
    x = 299,959,154,175.78/521,141.69
  6. Step 6: Final answer
    x = 575,580.81

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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.