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Finding the Fourth Proportional to 707,571.45, 976,318.87 and 417,274.08

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Solution

The fourth proportional to 707,571.45, 976,318.87 and 417,274.08 is: 575,761.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,571.45 : 976,318.87 = 417,274.08 : x
  2. Step 2: Convert to fraction form
    707,571.45/976,318.87 = 417,274.08/x
  3. Step 3: Cross multiply
    707,571.45x = 976,318.87 × 417,274.08
  4. Step 4: Simplify right side
    707,571.45x = 407,392,558,265.89
  5. Step 5: Solve for x
    x = 407,392,558,265.89/707,571.45
  6. Step 6: Final answer
    x = 575,761.72

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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.