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Finding the Fourth Proportional to 461,657.40, 692,486.10 and 251,705.40

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Solution

The fourth proportional to 461,657.40, 692,486.10 and 251,705.40 is: 377,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,657.40 : 692,486.10 = 251,705.40 : x
  2. Step 2: Convert to fraction form
    461,657.40/692,486.10 = 251,705.40/x
  3. Step 3: Cross multiply
    461,657.40x = 692,486.10 × 251,705.40
  4. Step 4: Simplify right side
    461,657.40x = 174,302,490,794.94
  5. Step 5: Solve for x
    x = 174,302,490,794.94/461,657.40
  6. Step 6: Final answer
    x = 377,558.10

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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.