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Finding the Fourth Proportional to 556,356.12, 767,764.18 and 301,705.96

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Solution

The fourth proportional to 556,356.12, 767,764.18 and 301,705.96 is: 416,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,356.12 : 767,764.18 = 301,705.96 : x
  2. Step 2: Convert to fraction form
    556,356.12/767,764.18 = 301,705.96/x
  3. Step 3: Cross multiply
    556,356.12x = 767,764.18 × 301,705.96
  4. Step 4: Simplify right side
    556,356.12x = 231,639,028,980.51
  5. Step 5: Solve for x
    x = 231,639,028,980.51/556,356.12
  6. Step 6: Final answer
    x = 416,350.28

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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.