Home / 514,008.14-770,919.32-139,943.66

Finding the Fourth Proportional to 514,008.14, 770,919.32 and 139,943.66

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Solution

The fourth proportional to 514,008.14, 770,919.32 and 139,943.66 is: 209,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,008.14 : 770,919.32 = 139,943.66 : x
  2. Step 2: Convert to fraction form
    514,008.14/770,919.32 = 139,943.66/x
  3. Step 3: Cross multiply
    514,008.14x = 770,919.32 × 139,943.66
  4. Step 4: Simplify right side
    514,008.14x = 107,885,271,205.51
  5. Step 5: Solve for x
    x = 107,885,271,205.51/514,008.14
  6. Step 6: Final answer
    x = 209,890.20

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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.