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Finding the Fourth Proportional to 688,995.01, 950,855.84 and 383,073.85

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Solution

The fourth proportional to 688,995.01, 950,855.84 and 383,073.85 is: 528,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,995.01 : 950,855.84 = 383,073.85 : x
  2. Step 2: Convert to fraction form
    688,995.01/950,855.84 = 383,073.85/x
  3. Step 3: Cross multiply
    688,995.01x = 950,855.84 × 383,073.85
  4. Step 4: Simplify right side
    688,995.01x = 364,248,007,423.78
  5. Step 5: Solve for x
    x = 364,248,007,423.78/688,995.01
  6. Step 6: Final answer
    x = 528,665.67

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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.