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Finding the Fourth Proportional to 556,210.80, 767,571.78 and 301,562.64

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Solution

The fourth proportional to 556,210.80, 767,571.78 and 301,562.64 is: 416,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,210.80 : 767,571.78 = 301,562.64 : x
  2. Step 2: Convert to fraction form
    556,210.80/767,571.78 = 301,562.64/x
  3. Step 3: Cross multiply
    556,210.80x = 767,571.78 × 301,562.64
  4. Step 4: Simplify right side
    556,210.80x = 231,470,972,366.30
  5. Step 5: Solve for x
    x = 231,470,972,366.30/556,210.80
  6. Step 6: Final answer
    x = 416,156.92

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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.