Home / 976,056.80-1,464,085.20-641,213.60

Finding the Fourth Proportional to 976,056.80, 1,464,085.20 and 641,213.60

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Solution

The fourth proportional to 976,056.80, 1,464,085.20 and 641,213.60 is: 961,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,056.80 : 1,464,085.20 = 641,213.60 : x
  2. Step 2: Convert to fraction form
    976,056.80/1,464,085.20 = 641,213.60/x
  3. Step 3: Cross multiply
    976,056.80x = 1,464,085.20 × 641,213.60
  4. Step 4: Simplify right side
    976,056.80x = 938,791,341,798.72
  5. Step 5: Solve for x
    x = 938,791,341,798.72/976,056.80
  6. Step 6: Final answer
    x = 961,820.40

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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.