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Finding the Fourth Proportional to 705,504.78, 973,614.36 and 383,214.78

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Solution

The fourth proportional to 705,504.78, 973,614.36 and 383,214.78 is: 528,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,504.78 : 973,614.36 = 383,214.78 : x
  2. Step 2: Convert to fraction form
    705,504.78/973,614.36 = 383,214.78/x
  3. Step 3: Cross multiply
    705,504.78x = 973,614.36 × 383,214.78
  4. Step 4: Simplify right side
    705,504.78x = 373,103,412,772.24
  5. Step 5: Solve for x
    x = 373,103,412,772.24/705,504.78
  6. Step 6: Final answer
    x = 528,846.05

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1.5x scale

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.