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Finding the Fourth Proportional to 556,957.53, 768,605.31 and 302,308.68

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Solution

The fourth proportional to 556,957.53, 768,605.31 and 302,308.68 is: 417,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,957.53 : 768,605.31 = 302,308.68 : x
  2. Step 2: Convert to fraction form
    556,957.53/768,605.31 = 302,308.68/x
  3. Step 3: Cross multiply
    556,957.53x = 768,605.31 × 302,308.68
  4. Step 4: Simplify right side
    556,957.53x = 232,356,056,707.09
  5. Step 5: Solve for x
    x = 232,356,056,707.09/556,957.53
  6. Step 6: Final answer
    x = 417,188.11

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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.