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Finding the Fourth Proportional to 472,789.80, 709,184.70 and 367,036.20

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Solution

The fourth proportional to 472,789.80, 709,184.70 and 367,036.20 is: 550,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,789.80 : 709,184.70 = 367,036.20 : x
  2. Step 2: Convert to fraction form
    472,789.80/709,184.70 = 367,036.20/x
  3. Step 3: Cross multiply
    472,789.80x = 709,184.70 × 367,036.20
  4. Step 4: Simplify right side
    472,789.80x = 260,296,457,386.14
  5. Step 5: Solve for x
    x = 260,296,457,386.14/472,789.80
  6. Step 6: Final answer
    x = 550,554.30

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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.