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Finding the Fourth Proportional to 474,701.19, 655,029.72 and 378,150.93

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Solution

The fourth proportional to 474,701.19, 655,029.72 and 378,150.93 is: 521,802.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,701.19 : 655,029.72 = 378,150.93 : x
  2. Step 2: Convert to fraction form
    474,701.19/655,029.72 = 378,150.93/x
  3. Step 3: Cross multiply
    474,701.19x = 655,029.72 × 378,150.93
  4. Step 4: Simplify right side
    474,701.19x = 247,700,097,795.64
  5. Step 5: Solve for x
    x = 247,700,097,795.64/474,701.19
  6. Step 6: Final answer
    x = 521,802.14

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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.