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Finding the Fourth Proportional to 705,974.11, 974,250.71 and 383,685.03

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Solution

The fourth proportional to 705,974.11, 974,250.71 and 383,685.03 is: 529,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,974.11 : 974,250.71 = 383,685.03 : x
  2. Step 2: Convert to fraction form
    705,974.11/974,250.71 = 383,685.03/x
  3. Step 3: Cross multiply
    705,974.11x = 974,250.71 × 383,685.03
  4. Step 4: Simplify right side
    705,974.11x = 373,805,412,893.87
  5. Step 5: Solve for x
    x = 373,805,412,893.87/705,974.11
  6. Step 6: Final answer
    x = 529,488.84

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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.