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Finding the Fourth Proportional to 566,931,830.40, 850,397,745.60 and 157,987,980.90

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Solution

The fourth proportional to 566,931,830.40, 850,397,745.60 and 157,987,980.90 is: 236,981,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,931,830.40 : 850,397,745.60 = 157,987,980.90 : x
  2. Step 2: Convert to fraction form
    566,931,830.40/850,397,745.60 = 157,987,980.90/x
  3. Step 3: Cross multiply
    566,931,830.40x = 850,397,745.60 × 157,987,980.90
  4. Step 4: Simplify right side
    566,931,830.40x = 134,352,622,789,255,872
  5. Step 5: Solve for x
    x = 134,352,622,789,255,872/566,931,830.40
  6. Step 6: Final answer
    x = 236,981,971.35

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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.