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Finding the Fourth Proportional to 651,629,806.20, 977,444,709.30 and 651,629,806.20

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Solution

The fourth proportional to 651,629,806.20, 977,444,709.30 and 651,629,806.20 is: 977,444,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,629,806.20 : 977,444,709.30 = 651,629,806.20 : x
  2. Step 2: Convert to fraction form
    651,629,806.20/977,444,709.30 = 651,629,806.20/x
  3. Step 3: Cross multiply
    651,629,806.20x = 977,444,709.30 × 651,629,806.20
  4. Step 4: Simplify right side
    651,629,806.20x = 636,932,106,492,374,400
  5. Step 5: Solve for x
    x = 636,932,106,492,374,400/651,629,806.20
  6. Step 6: Final answer
    x = 977,444,709.30

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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.