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Finding the Fourth Proportional to 556,558.11, 768,050.43 and 314,835.51

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Solution

The fourth proportional to 556,558.11, 768,050.43 and 314,835.51 is: 434,473.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,558.11 : 768,050.43 = 314,835.51 : x
  2. Step 2: Convert to fraction form
    556,558.11/768,050.43 = 314,835.51/x
  3. Step 3: Cross multiply
    556,558.11x = 768,050.43 × 314,835.51
  4. Step 4: Simplify right side
    556,558.11x = 241,809,548,834.77
  5. Step 5: Solve for x
    x = 241,809,548,834.77/556,558.11
  6. Step 6: Final answer
    x = 434,473.14

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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.