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Finding the Fourth Proportional to 472,843.90, 709,265.85 and 236,223.10

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Solution

The fourth proportional to 472,843.90, 709,265.85 and 236,223.10 is: 354,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,843.90 : 709,265.85 = 236,223.10 : x
  2. Step 2: Convert to fraction form
    472,843.90/709,265.85 = 236,223.10/x
  3. Step 3: Cross multiply
    472,843.90x = 709,265.85 × 236,223.10
  4. Step 4: Simplify right side
    472,843.90x = 167,544,977,811.14
  5. Step 5: Solve for x
    x = 167,544,977,811.14/472,843.90
  6. Step 6: Final answer
    x = 354,334.65

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Half scale
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Double scale
Find fourth proportional to 472,844.90, 709,267.35 and 236,224.10
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.