Home / 689,596.11-951,559.95-383,595.21

Finding the Fourth Proportional to 689,596.11, 951,559.95 and 383,595.21

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Solution

The fourth proportional to 689,596.11, 951,559.95 and 383,595.21 is: 529,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,596.11 : 951,559.95 = 383,595.21 : x
  2. Step 2: Convert to fraction form
    689,596.11/951,559.95 = 383,595.21/x
  3. Step 3: Cross multiply
    689,596.11x = 951,559.95 × 383,595.21
  4. Step 4: Simplify right side
    689,596.11x = 365,013,838,847.84
  5. Step 5: Solve for x
    x = 365,013,838,847.84/689,596.11
  6. Step 6: Final answer
    x = 529,315.40

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Half scale
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Double scale
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Similar ratio
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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.