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Finding the Fourth Proportional to 705,351.12, 973,384.30 and 383,061.30

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Solution

The fourth proportional to 705,351.12, 973,384.30 and 383,061.30 is: 528,624.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,351.12 : 973,384.30 = 383,061.30 : x
  2. Step 2: Convert to fraction form
    705,351.12/973,384.30 = 383,061.30/x
  3. Step 3: Cross multiply
    705,351.12x = 973,384.30 × 383,061.30
  4. Step 4: Simplify right side
    705,351.12x = 372,865,855,357.59
  5. Step 5: Solve for x
    x = 372,865,855,357.59/705,351.12
  6. Step 6: Final answer
    x = 528,624.46

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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.