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Finding the Fourth Proportional to 651,846.60, 977,769.90 and 546,870.60

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Solution

The fourth proportional to 651,846.60, 977,769.90 and 546,870.60 is: 820,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,846.60 : 977,769.90 = 546,870.60 : x
  2. Step 2: Convert to fraction form
    651,846.60/977,769.90 = 546,870.60/x
  3. Step 3: Cross multiply
    651,846.60x = 977,769.90 × 546,870.60
  4. Step 4: Simplify right side
    651,846.60x = 534,713,611,874.94
  5. Step 5: Solve for x
    x = 534,713,611,874.94/651,846.60
  6. Step 6: Final answer
    x = 820,305.90

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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.