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Finding the Fourth Proportional to 524,330, 723,511.81 and 291,701.91

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Solution

The fourth proportional to 524,330, 723,511.81 and 291,701.91 is: 402,513.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,330 : 723,511.81 = 291,701.91 : x
  2. Step 2: Convert to fraction form
    524,330/723,511.81 = 291,701.91/x
  3. Step 3: Cross multiply
    524,330x = 723,511.81 × 291,701.91
  4. Step 4: Simplify right side
    524,330x = 211,049,776,884.56
  5. Step 5: Solve for x
    x = 211,049,776,884.56/524,330
  6. Step 6: Final answer
    x = 402,513.26

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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.