Home / 524,015,999.40-786,023,999.10-443,394,431.40

Finding the Fourth Proportional to 524,015,999.40, 786,023,999.10 and 443,394,431.40

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Solution

The fourth proportional to 524,015,999.40, 786,023,999.10 and 443,394,431.40 is: 665,091,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,015,999.40 : 786,023,999.10 = 443,394,431.40 : x
  2. Step 2: Convert to fraction form
    524,015,999.40/786,023,999.10 = 443,394,431.40/x
  3. Step 3: Cross multiply
    524,015,999.40x = 786,023,999.10 × 443,394,431.40
  4. Step 4: Simplify right side
    524,015,999.40x = 348,518,664,147,698,624
  5. Step 5: Solve for x
    x = 348,518,664,147,698,624/524,015,999.40
  6. Step 6: Final answer
    x = 665,091,647.10

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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.