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Finding the Fourth Proportional to 733,675.40, 1,100,513.10 and 260,408.60

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Solution

The fourth proportional to 733,675.40, 1,100,513.10 and 260,408.60 is: 390,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    733,675.40 : 1,100,513.10 = 260,408.60 : x
  2. Step 2: Convert to fraction form
    733,675.40/1,100,513.10 = 260,408.60/x
  3. Step 3: Cross multiply
    733,675.40x = 1,100,513.10 × 260,408.60
  4. Step 4: Simplify right side
    733,675.40x = 286,583,075,652.66
  5. Step 5: Solve for x
    x = 286,583,075,652.66/733,675.40
  6. Step 6: Final answer
    x = 390,612.90

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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.