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Finding the Fourth Proportional to 556,558.65, 768,052.88 and 301,911.66

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Solution

The fourth proportional to 556,558.65, 768,052.88 and 301,911.66 is: 416,639.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,558.65 : 768,052.88 = 301,911.66 : x
  2. Step 2: Convert to fraction form
    556,558.65/768,052.88 = 301,911.66/x
  3. Step 3: Cross multiply
    556,558.65x = 768,052.88 × 301,911.66
  4. Step 4: Simplify right side
    556,558.65x = 231,884,119,968.58
  5. Step 5: Solve for x
    x = 231,884,119,968.58/556,558.65
  6. Step 6: Final answer
    x = 416,639.14

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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.