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Finding the Fourth Proportional to 556,822.78, 768,415.94 and 302,173.96

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Solution

The fourth proportional to 556,822.78, 768,415.94 and 302,173.96 is: 417,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,822.78 : 768,415.94 = 302,173.96 : x
  2. Step 2: Convert to fraction form
    556,822.78/768,415.94 = 302,173.96/x
  3. Step 3: Cross multiply
    556,822.78x = 768,415.94 × 302,173.96
  4. Step 4: Simplify right side
    556,822.78x = 232,195,287,516.92
  5. Step 5: Solve for x
    x = 232,195,287,516.92/556,822.78
  6. Step 6: Final answer
    x = 417,000.34

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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.