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Finding the Fourth Proportional to 651,345.40, 977,190.90 and 230,577.40

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Solution

The fourth proportional to 651,345.40, 977,190.90 and 230,577.40 is: 345,927.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,345.40 : 977,190.90 = 230,577.40 : x
  2. Step 2: Convert to fraction form
    651,345.40/977,190.90 = 230,577.40/x
  3. Step 3: Cross multiply
    651,345.40x = 977,190.90 × 230,577.40
  4. Step 4: Simplify right side
    651,345.40x = 225,318,137,025.66
  5. Step 5: Solve for x
    x = 225,318,137,025.66/651,345.40
  6. Step 6: Final answer
    x = 345,927.27

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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.