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Finding the Fourth Proportional to 705,980.84, 974,253.58 and 383,691.72

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Solution

The fourth proportional to 705,980.84, 974,253.58 and 383,691.72 is: 529,494.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,980.84 : 974,253.58 = 383,691.72 : x
  2. Step 2: Convert to fraction form
    705,980.84/974,253.58 = 383,691.72/x
  3. Step 3: Cross multiply
    705,980.84x = 974,253.58 × 383,691.72
  4. Step 4: Simplify right side
    705,980.84x = 373,813,031,826.36
  5. Step 5: Solve for x
    x = 373,813,031,826.36/705,980.84
  6. Step 6: Final answer
    x = 529,494.58

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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.