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Finding the Fourth Proportional to 521,464.72, 719,603.04 and 295,105.36

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Solution

The fourth proportional to 521,464.72, 719,603.04 and 295,105.36 is: 407,235.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,464.72 : 719,603.04 = 295,105.36 : x
  2. Step 2: Convert to fraction form
    521,464.72/719,603.04 = 295,105.36/x
  3. Step 3: Cross multiply
    521,464.72x = 719,603.04 × 295,105.36
  4. Step 4: Simplify right side
    521,464.72x = 212,358,714,176.29
  5. Step 5: Solve for x
    x = 212,358,714,176.29/521,464.72
  6. Step 6: Final answer
    x = 407,235.06

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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.