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Finding the Fourth Proportional to 734,133.60, 1,101,200.40 and 260,866.80

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Solution

The fourth proportional to 734,133.60, 1,101,200.40 and 260,866.80 is: 391,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,133.60 : 1,101,200.40 = 260,866.80 : x
  2. Step 2: Convert to fraction form
    734,133.60/1,101,200.40 = 260,866.80/x
  3. Step 3: Cross multiply
    734,133.60x = 1,101,200.40 × 260,866.80
  4. Step 4: Simplify right side
    734,133.60x = 287,266,624,506.72
  5. Step 5: Solve for x
    x = 287,266,624,506.72/734,133.60
  6. Step 6: Final answer
    x = 391,300.20

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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.