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Finding the Fourth Proportional to 734,572.80, 1,101,340.80 and 335,404.80

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Solution

The fourth proportional to 734,572.80, 1,101,340.80 and 335,404.80 is: 502,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,572.80 : 1,101,340.80 = 335,404.80 : x
  2. Step 2: Convert to fraction form
    734,572.80/1,101,340.80 = 335,404.80/x
  3. Step 3: Cross multiply
    734,572.80x = 1,101,340.80 × 335,404.80
  4. Step 4: Simplify right side
    734,572.80x = 369,394,990,755.84
  5. Step 5: Solve for x
    x = 369,394,990,755.84/734,572.80
  6. Step 6: Final answer
    x = 502,870.50

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Half scale
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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.