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Finding the Fourth Proportional to 662,674.90, 994,012.35 and 164,038.90

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Solution

The fourth proportional to 662,674.90, 994,012.35 and 164,038.90 is: 246,058.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,674.90 : 994,012.35 = 164,038.90 : x
  2. Step 2: Convert to fraction form
    662,674.90/994,012.35 = 164,038.90/x
  3. Step 3: Cross multiply
    662,674.90x = 994,012.35 × 164,038.90
  4. Step 4: Simplify right side
    662,674.90x = 163,056,692,480.42
  5. Step 5: Solve for x
    x = 163,056,692,480.42/662,674.90
  6. Step 6: Final answer
    x = 246,058.35

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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.