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Finding the Fourth Proportional to 556,828.56, 768,415.24 and 327,411.76

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Solution

The fourth proportional to 556,828.56, 768,415.24 and 327,411.76 is: 451,823.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,828.56 : 768,415.24 = 327,411.76 : x
  2. Step 2: Convert to fraction form
    556,828.56/768,415.24 = 327,411.76/x
  3. Step 3: Cross multiply
    556,828.56x = 768,415.24 × 327,411.76
  4. Step 4: Simplify right side
    556,828.56x = 251,588,186,139.22
  5. Step 5: Solve for x
    x = 251,588,186,139.22/556,828.56
  6. Step 6: Final answer
    x = 451,823.42

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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.