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Finding the Fourth Proportional to 530,963.90, 796,445.85 and 156,986.90

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Solution

The fourth proportional to 530,963.90, 796,445.85 and 156,986.90 is: 235,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,963.90 : 796,445.85 = 156,986.90 : x
  2. Step 2: Convert to fraction form
    530,963.90/796,445.85 = 156,986.90/x
  3. Step 3: Cross multiply
    530,963.90x = 796,445.85 × 156,986.90
  4. Step 4: Simplify right side
    530,963.90x = 125,031,565,009.37
  5. Step 5: Solve for x
    x = 125,031,565,009.37/530,963.90
  6. Step 6: Final answer
    x = 235,480.35

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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.