Home / 890,379,147.48-1,335,568,762.76-609,983,568.57

Finding the Fourth Proportional to 890,379,147.48, 1,335,568,762.76 and 609,983,568.57

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Solution

The fourth proportional to 890,379,147.48, 1,335,568,762.76 and 609,983,568.57 is: 914,975,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,379,147.48 : 1,335,568,762.76 = 609,983,568.57 : x
  2. Step 2: Convert to fraction form
    890,379,147.48/1,335,568,762.76 = 609,983,568.57/x
  3. Step 3: Cross multiply
    890,379,147.48x = 1,335,568,762.76 × 609,983,568.57
  4. Step 4: Simplify right side
    890,379,147.48x = 814,674,999,978,964,608
  5. Step 5: Solve for x
    x = 814,674,999,978,964,608/890,379,147.48
  6. Step 6: Final answer
    x = 914,975,381.31

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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.