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Finding the Fourth Proportional to 556,558.15, 768,052.19 and 301,911.16

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Solution

The fourth proportional to 556,558.15, 768,052.19 and 301,911.16 is: 416,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,558.15 : 768,052.19 = 301,911.16 : x
  2. Step 2: Convert to fraction form
    556,558.15/768,052.19 = 301,911.16/x
  3. Step 3: Cross multiply
    556,558.15x = 768,052.19 × 301,911.16
  4. Step 4: Simplify right side
    556,558.15x = 231,883,523,783.18
  5. Step 5: Solve for x
    x = 231,883,523,783.18/556,558.15
  6. Step 6: Final answer
    x = 416,638.45

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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.