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Finding the Fourth Proportional to 556,905.66, 768,530.13 and 302,256.84

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Solution

The fourth proportional to 556,905.66, 768,530.13 and 302,256.84 is: 417,114.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,905.66 : 768,530.13 = 302,256.84 : x
  2. Step 2: Convert to fraction form
    556,905.66/768,530.13 = 302,256.84/x
  3. Step 3: Cross multiply
    556,905.66x = 768,530.13 × 302,256.84
  4. Step 4: Simplify right side
    556,905.66x = 232,293,484,695.94
  5. Step 5: Solve for x
    x = 232,293,484,695.94/556,905.66
  6. Step 6: Final answer
    x = 417,114.61

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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.