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Finding the Fourth Proportional to 520,677.88, 718,525.94 and 294,323.38

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Solution

The fourth proportional to 520,677.88, 718,525.94 and 294,323.38 is: 406,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,677.88 : 718,525.94 = 294,323.38 : x
  2. Step 2: Convert to fraction form
    520,677.88/718,525.94 = 294,323.38/x
  3. Step 3: Cross multiply
    520,677.88x = 718,525.94 × 294,323.38
  4. Step 4: Simplify right side
    520,677.88x = 211,478,983,278.48
  5. Step 5: Solve for x
    x = 211,478,983,278.48/520,677.88
  6. Step 6: Final answer
    x = 406,160.87

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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.