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Finding the Fourth Proportional to 651,880.60, 977,820.90 and 564,400.60

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Solution

The fourth proportional to 651,880.60, 977,820.90 and 564,400.60 is: 846,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,880.60 : 977,820.90 = 564,400.60 : x
  2. Step 2: Convert to fraction form
    651,880.60/977,820.90 = 564,400.60/x
  3. Step 3: Cross multiply
    651,880.60x = 977,820.90 × 564,400.60
  4. Step 4: Simplify right side
    651,880.60x = 551,882,702,652.54
  5. Step 5: Solve for x
    x = 551,882,702,652.54/651,880.60
  6. Step 6: Final answer
    x = 846,600.90

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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.