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Finding the Fourth Proportional to 931,876.16, 1,397,806.56 and 267,028.80

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Solution

The fourth proportional to 931,876.16, 1,397,806.56 and 267,028.80 is: 400,541.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,876.16 : 1,397,806.56 = 267,028.80 : x
  2. Step 2: Convert to fraction form
    931,876.16/1,397,806.56 = 267,028.80/x
  3. Step 3: Cross multiply
    931,876.16x = 1,397,806.56 × 267,028.80
  4. Step 4: Simplify right side
    931,876.16x = 373,254,608,348.93
  5. Step 5: Solve for x
    x = 373,254,608,348.93/931,876.16
  6. Step 6: Final answer
    x = 400,541.00

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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.