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Finding the Fourth Proportional to 604,911.70, 907,367.55 and 415,954.90

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Solution

The fourth proportional to 604,911.70, 907,367.55 and 415,954.90 is: 623,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,911.70 : 907,367.55 = 415,954.90 : x
  2. Step 2: Convert to fraction form
    604,911.70/907,367.55 = 415,954.90/x
  3. Step 3: Cross multiply
    604,911.70x = 907,367.55 × 415,954.90
  4. Step 4: Simplify right side
    604,911.70x = 377,423,978,523.50
  5. Step 5: Solve for x
    x = 377,423,978,523.50/604,911.70
  6. Step 6: Final answer
    x = 623,932.35

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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.