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Finding the Fourth Proportional to 455,529.70, 683,294.55 and 433,756.90

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Solution

The fourth proportional to 455,529.70, 683,294.55 and 433,756.90 is: 650,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,529.70 : 683,294.55 = 433,756.90 : x
  2. Step 2: Convert to fraction form
    455,529.70/683,294.55 = 433,756.90/x
  3. Step 3: Cross multiply
    455,529.70x = 683,294.55 × 433,756.90
  4. Step 4: Simplify right side
    455,529.70x = 296,383,725,794.90
  5. Step 5: Solve for x
    x = 296,383,725,794.90/455,529.70
  6. Step 6: Final answer
    x = 650,635.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.