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Finding the Fourth Proportional to 556,876.81, 768,469.44 and 302,222.53

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Solution

The fourth proportional to 556,876.81, 768,469.44 and 302,222.53 is: 417,055.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,876.81 : 768,469.44 = 302,222.53 : x
  2. Step 2: Convert to fraction form
    556,876.81/768,469.44 = 302,222.53/x
  3. Step 3: Cross multiply
    556,876.81x = 768,469.44 × 302,222.53
  4. Step 4: Simplify right side
    556,876.81x = 232,248,778,384.48
  5. Step 5: Solve for x
    x = 232,248,778,384.48/556,876.81
  6. Step 6: Final answer
    x = 417,055.93

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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.