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Finding the Fourth Proportional to 867,794.40, 1,301,691.60 and 369,093.60

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Solution

The fourth proportional to 867,794.40, 1,301,691.60 and 369,093.60 is: 553,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,794.40 : 1,301,691.60 = 369,093.60 : x
  2. Step 2: Convert to fraction form
    867,794.40/1,301,691.60 = 369,093.60/x
  3. Step 3: Cross multiply
    867,794.40x = 1,301,691.60 × 369,093.60
  4. Step 4: Simplify right side
    867,794.40x = 480,446,038,733.76
  5. Step 5: Solve for x
    x = 480,446,038,733.76/867,794.40
  6. Step 6: Final answer
    x = 553,640.40

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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.