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Finding the Fourth Proportional to 577,661.60, 866,492.40 and 178,266.80

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Solution

The fourth proportional to 577,661.60, 866,492.40 and 178,266.80 is: 267,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,661.60 : 866,492.40 = 178,266.80 : x
  2. Step 2: Convert to fraction form
    577,661.60/866,492.40 = 178,266.80/x
  3. Step 3: Cross multiply
    577,661.60x = 866,492.40 × 178,266.80
  4. Step 4: Simplify right side
    577,661.60x = 154,466,827,372.32
  5. Step 5: Solve for x
    x = 154,466,827,372.32/577,661.60
  6. Step 6: Final answer
    x = 267,400.20

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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.