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Finding the Fourth Proportional to 977,672.70, 1,466,509.05 and 267,699.60

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Solution

The fourth proportional to 977,672.70, 1,466,509.05 and 267,699.60 is: 401,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,672.70 : 1,466,509.05 = 267,699.60 : x
  2. Step 2: Convert to fraction form
    977,672.70/1,466,509.05 = 267,699.60/x
  3. Step 3: Cross multiply
    977,672.70x = 1,466,509.05 × 267,699.60
  4. Step 4: Simplify right side
    977,672.70x = 392,583,886,081.38
  5. Step 5: Solve for x
    x = 392,583,886,081.38/977,672.70
  6. Step 6: Final answer
    x = 401,549.40

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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.