Home / 1,019,063.70-1,528,401.15-309,114.90

Finding the Fourth Proportional to 1,019,063.70, 1,528,401.15 and 309,114.90

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Solution

The fourth proportional to 1,019,063.70, 1,528,401.15 and 309,114.90 is: 463,613.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,063.70 : 1,528,401.15 = 309,114.90 : x
  2. Step 2: Convert to fraction form
    1,019,063.70/1,528,401.15 = 309,114.90/x
  3. Step 3: Cross multiply
    1,019,063.70x = 1,528,401.15 × 309,114.90
  4. Step 4: Simplify right side
    1,019,063.70x = 472,451,568,642.14
  5. Step 5: Solve for x
    x = 472,451,568,642.14/1,019,063.70
  6. Step 6: Final answer
    x = 463,613.38

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Double scale
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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.