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Finding the Fourth Proportional to 556,938.51, 768,577.11 and 302,289.66

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Solution

The fourth proportional to 556,938.51, 768,577.11 and 302,289.66 is: 417,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,938.51 : 768,577.11 = 302,289.66 : x
  2. Step 2: Convert to fraction form
    556,938.51/768,577.11 = 302,289.66/x
  3. Step 3: Cross multiply
    556,938.51x = 768,577.11 × 302,289.66
  4. Step 4: Simplify right side
    556,938.51x = 232,332,913,265.68
  5. Step 5: Solve for x
    x = 232,332,913,265.68/556,938.51
  6. Step 6: Final answer
    x = 417,160.80

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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.