Home / 909,105.08-1,254,541.84-501,197.38

Finding the Fourth Proportional to 909,105.08, 1,254,541.84 and 501,197.38

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Solution

The fourth proportional to 909,105.08, 1,254,541.84 and 501,197.38 is: 691,639.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,105.08 : 1,254,541.84 = 501,197.38 : x
  2. Step 2: Convert to fraction form
    909,105.08/1,254,541.84 = 501,197.38/x
  3. Step 3: Cross multiply
    909,105.08x = 1,254,541.84 × 501,197.38
  4. Step 4: Simplify right side
    909,105.08x = 628,773,078,919.03
  5. Step 5: Solve for x
    x = 628,773,078,919.03/909,105.08
  6. Step 6: Final answer
    x = 691,639.61

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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.