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Finding the Fourth Proportional to 867,511.60, 1,300,230.60 and 446,570.80

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Solution

The fourth proportional to 867,511.60, 1,300,230.60 and 446,570.80 is: 669,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,511.60 : 1,300,230.60 = 446,570.80 : x
  2. Step 2: Convert to fraction form
    867,511.60/1,300,230.60 = 446,570.80/x
  3. Step 3: Cross multiply
    867,511.60x = 1,300,230.60 × 446,570.80
  4. Step 4: Simplify right side
    867,511.60x = 580,645,019,226.48
  5. Step 5: Solve for x
    x = 580,645,019,226.48/867,511.60
  6. Step 6: Final answer
    x = 669,322.48

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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.