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Finding the Fourth Proportional to 556,034.60, 767,259.06 and 394,830.83

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Solution

The fourth proportional to 556,034.60, 767,259.06 and 394,830.83 is: 544,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,034.60 : 767,259.06 = 394,830.83 : x
  2. Step 2: Convert to fraction form
    556,034.60/767,259.06 = 394,830.83/x
  3. Step 3: Cross multiply
    556,034.60x = 767,259.06 × 394,830.83
  4. Step 4: Simplify right side
    556,034.60x = 302,937,531,484.82
  5. Step 5: Solve for x
    x = 302,937,531,484.82/556,034.60
  6. Step 6: Final answer
    x = 544,817.77

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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.