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Finding the Fourth Proportional to 556,781.37, 768,360.36 and 302,132.53

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Solution

The fourth proportional to 556,781.37, 768,360.36 and 302,132.53 is: 416,944.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,781.37 : 768,360.36 = 302,132.53 : x
  2. Step 2: Convert to fraction form
    556,781.37/768,360.36 = 302,132.53/x
  3. Step 3: Cross multiply
    556,781.37x = 768,360.36 × 302,132.53
  4. Step 4: Simplify right side
    556,781.37x = 232,146,659,518.51
  5. Step 5: Solve for x
    x = 232,146,659,518.51/556,781.37
  6. Step 6: Final answer
    x = 416,944.01

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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.