Home / 726,207.12-1,001,919.78-519,300.72

Finding the Fourth Proportional to 726,207.12, 1,001,919.78 and 519,300.72

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Solution

The fourth proportional to 726,207.12, 1,001,919.78 and 519,300.72 is: 716,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,207.12 : 1,001,919.78 = 519,300.72 : x
  2. Step 2: Convert to fraction form
    726,207.12/1,001,919.78 = 519,300.72/x
  3. Step 3: Cross multiply
    726,207.12x = 1,001,919.78 × 519,300.72
  4. Step 4: Simplify right side
    726,207.12x = 520,297,663,136.24
  5. Step 5: Solve for x
    x = 520,297,663,136.24/726,207.12
  6. Step 6: Final answer
    x = 716,459.05

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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.