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Finding the Fourth Proportional to 705,965.90, 974,240.46 and 383,676.01

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Solution

The fourth proportional to 705,965.90, 974,240.46 and 383,676.01 is: 529,476.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,965.90 : 974,240.46 = 383,676.01 : x
  2. Step 2: Convert to fraction form
    705,965.90/974,240.46 = 383,676.01/x
  3. Step 3: Cross multiply
    705,965.90x = 974,240.46 × 383,676.01
  4. Step 4: Simplify right side
    705,965.90x = 373,792,690,037.76
  5. Step 5: Solve for x
    x = 373,792,690,037.76/705,965.90
  6. Step 6: Final answer
    x = 529,476.98

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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.