Home / 514,327,739.66-709,771,740.59-279,378,583.90

Finding the Fourth Proportional to 514,327,739.66, 709,771,740.59 and 279,378,583.90

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Solution

The fourth proportional to 514,327,739.66, 709,771,740.59 and 279,378,583.90 is: 385,542,152.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,327,739.66 : 709,771,740.59 = 279,378,583.90 : x
  2. Step 2: Convert to fraction form
    514,327,739.66/709,771,740.59 = 279,378,583.90/x
  3. Step 3: Cross multiply
    514,327,739.66x = 709,771,740.59 × 279,378,583.90
  4. Step 4: Simplify right side
    514,327,739.66x = 198,295,023,779,858,016
  5. Step 5: Solve for x
    x = 198,295,023,779,858,016/514,327,739.66
  6. Step 6: Final answer
    x = 385,542,152.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.