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Finding the Fourth Proportional to 517,366.02, 713,964.54 and 291,011.52

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Solution

The fourth proportional to 517,366.02, 713,964.54 and 291,011.52 is: 401,595.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,366.02 : 713,964.54 = 291,011.52 : x
  2. Step 2: Convert to fraction form
    517,366.02/713,964.54 = 291,011.52/x
  3. Step 3: Cross multiply
    517,366.02x = 713,964.54 × 291,011.52
  4. Step 4: Simplify right side
    517,366.02x = 207,771,906,011.50
  5. Step 5: Solve for x
    x = 207,771,906,011.50/517,366.02
  6. Step 6: Final answer
    x = 401,595.58

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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.