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Finding the Fourth Proportional to 704,674.70, 1,057,206.45 and 349,700.30

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Solution

The fourth proportional to 704,674.70, 1,057,206.45 and 349,700.30 is: 524,646.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,674.70 : 1,057,206.45 = 349,700.30 : x
  2. Step 2: Convert to fraction form
    704,674.70/1,057,206.45 = 349,700.30/x
  3. Step 3: Cross multiply
    704,674.70x = 1,057,206.45 × 349,700.30
  4. Step 4: Simplify right side
    704,674.70x = 369,705,412,726.94
  5. Step 5: Solve for x
    x = 369,705,412,726.94/704,674.70
  6. Step 6: Final answer
    x = 524,646.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.