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Finding the Fourth Proportional to 497,409.60, 746,114.40 and 164,985.60

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Solution

The fourth proportional to 497,409.60, 746,114.40 and 164,985.60 is: 247,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,409.60 : 746,114.40 = 164,985.60 : x
  2. Step 2: Convert to fraction form
    497,409.60/746,114.40 = 164,985.60/x
  3. Step 3: Cross multiply
    497,409.60x = 746,114.40 × 164,985.60
  4. Step 4: Simplify right side
    497,409.60x = 123,098,131,952.64
  5. Step 5: Solve for x
    x = 123,098,131,952.64/497,409.60
  6. Step 6: Final answer
    x = 247,478.40

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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.