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Finding the Fourth Proportional to 649,603.40, 973,886.70 and 275,318.60

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Solution

The fourth proportional to 649,603.40, 973,886.70 and 275,318.60 is: 412,758.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,603.40 : 973,886.70 = 275,318.60 : x
  2. Step 2: Convert to fraction form
    649,603.40/973,886.70 = 275,318.60/x
  3. Step 3: Cross multiply
    649,603.40x = 973,886.70 × 275,318.60
  4. Step 4: Simplify right side
    649,603.40x = 268,129,122,802.62
  5. Step 5: Solve for x
    x = 268,129,122,802.62/649,603.40
  6. Step 6: Final answer
    x = 412,758.19

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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.