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Finding the Fourth Proportional to 936,408.70, 1,404,613.05 and 936,408.70

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Solution

The fourth proportional to 936,408.70, 1,404,613.05 and 936,408.70 is: 1,404,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,408.70 : 1,404,613.05 = 936,408.70 : x
  2. Step 2: Convert to fraction form
    936,408.70/1,404,613.05 = 936,408.70/x
  3. Step 3: Cross multiply
    936,408.70x = 1,404,613.05 × 936,408.70
  4. Step 4: Simplify right side
    936,408.70x = 1,315,291,880,153.53
  5. Step 5: Solve for x
    x = 1,315,291,880,153.53/936,408.70
  6. Step 6: Final answer
    x = 1,404,613.05

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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.