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Finding the Fourth Proportional to 624,279.60, 936,419.40 and 603,612.45

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Solution

The fourth proportional to 624,279.60, 936,419.40 and 603,612.45 is: 905,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,279.60 : 936,419.40 = 603,612.45 : x
  2. Step 2: Convert to fraction form
    624,279.60/936,419.40 = 603,612.45/x
  3. Step 3: Cross multiply
    624,279.60x = 936,419.40 × 603,612.45
  4. Step 4: Simplify right side
    624,279.60x = 565,234,408,261.53
  5. Step 5: Solve for x
    x = 565,234,408,261.53/624,279.60
  6. Step 6: Final answer
    x = 905,418.68

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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.