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Finding the Fourth Proportional to 705,407.67, 973,469.61 and 383,124.06

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Solution

The fourth proportional to 705,407.67, 973,469.61 and 383,124.06 is: 528,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,407.67 : 973,469.61 = 383,124.06 : x
  2. Step 2: Convert to fraction form
    705,407.67/973,469.61 = 383,124.06/x
  3. Step 3: Cross multiply
    705,407.67x = 973,469.61 × 383,124.06
  4. Step 4: Simplify right side
    705,407.67x = 372,959,629,269.82
  5. Step 5: Solve for x
    x = 372,959,629,269.82/705,407.67
  6. Step 6: Final answer
    x = 528,715.02

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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.