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Finding the Fourth Proportional to 662,454.90, 993,682.35 and 163,818.90

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Solution

The fourth proportional to 662,454.90, 993,682.35 and 163,818.90 is: 245,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,454.90 : 993,682.35 = 163,818.90 : x
  2. Step 2: Convert to fraction form
    662,454.90/993,682.35 = 163,818.90/x
  3. Step 3: Cross multiply
    662,454.90x = 993,682.35 × 163,818.90
  4. Step 4: Simplify right side
    662,454.90x = 162,783,949,526.42
  5. Step 5: Solve for x
    x = 162,783,949,526.42/662,454.90
  6. Step 6: Final answer
    x = 245,728.35

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Half scale
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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.