Home / 651,921,353.10-977,882,029.65-393,003,297.90

Finding the Fourth Proportional to 651,921,353.10, 977,882,029.65 and 393,003,297.90

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Solution

The fourth proportional to 651,921,353.10, 977,882,029.65 and 393,003,297.90 is: 589,504,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,921,353.10 : 977,882,029.65 = 393,003,297.90 : x
  2. Step 2: Convert to fraction form
    651,921,353.10/977,882,029.65 = 393,003,297.90/x
  3. Step 3: Cross multiply
    651,921,353.10x = 977,882,029.65 × 393,003,297.90
  4. Step 4: Simplify right side
    651,921,353.10x = 384,310,862,609,595,520
  5. Step 5: Solve for x
    x = 384,310,862,609,595,520/651,921,353.10
  6. Step 6: Final answer
    x = 589,504,946.85

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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.