Home / 866,286.16-1,299,518.35-326,996.69

Finding the Fourth Proportional to 866,286.16, 1,299,518.35 and 326,996.69

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Solution

The fourth proportional to 866,286.16, 1,299,518.35 and 326,996.69 is: 490,528.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,286.16 : 1,299,518.35 = 326,996.69 : x
  2. Step 2: Convert to fraction form
    866,286.16/1,299,518.35 = 326,996.69/x
  3. Step 3: Cross multiply
    866,286.16x = 1,299,518.35 × 326,996.69
  4. Step 4: Simplify right side
    866,286.16x = 424,938,191,729.18
  5. Step 5: Solve for x
    x = 424,938,191,729.18/866,286.16
  6. Step 6: Final answer
    x = 490,528.66

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Double scale
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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.