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Finding the Fourth Proportional to 705,800.84, 974,003.15 and 383,510.85

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Solution

The fourth proportional to 705,800.84, 974,003.15 and 383,510.85 is: 529,243.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,800.84 : 974,003.15 = 383,510.85 : x
  2. Step 2: Convert to fraction form
    705,800.84/974,003.15 = 383,510.85/x
  3. Step 3: Cross multiply
    705,800.84x = 974,003.15 × 383,510.85
  4. Step 4: Simplify right side
    705,800.84x = 373,540,774,041.62
  5. Step 5: Solve for x
    x = 373,540,774,041.62/705,800.84
  6. Step 6: Final answer
    x = 529,243.88

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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.