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Finding the Fourth Proportional to 504,643.78, 756,836.76 and 149,574.76

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Solution

The fourth proportional to 504,643.78, 756,836.76 and 149,574.76 is: 224,323.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,643.78 : 756,836.76 = 149,574.76 : x
  2. Step 2: Convert to fraction form
    504,643.78/756,836.76 = 149,574.76/x
  3. Step 3: Cross multiply
    504,643.78x = 756,836.76 × 149,574.76
  4. Step 4: Simplify right side
    504,643.78x = 113,203,676,736.18
  5. Step 5: Solve for x
    x = 113,203,676,736.18/504,643.78
  6. Step 6: Final answer
    x = 224,323.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.