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Finding the Fourth Proportional to 709,024.34, 978,814.79 and 547,516.82

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Solution

The fourth proportional to 709,024.34, 978,814.79 and 547,516.82 is: 755,852.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,024.34 : 978,814.79 = 547,516.82 : x
  2. Step 2: Convert to fraction form
    709,024.34/978,814.79 = 547,516.82/x
  3. Step 3: Cross multiply
    709,024.34x = 978,814.79 × 547,516.82
  4. Step 4: Simplify right side
    709,024.34x = 535,917,553,558.11
  5. Step 5: Solve for x
    x = 535,917,553,558.11/709,024.34
  6. Step 6: Final answer
    x = 755,852.13

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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.