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Finding the Fourth Proportional to 613,322.91, 846,395.19 and 341,393.76

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Solution

The fourth proportional to 613,322.91, 846,395.19 and 341,393.76 is: 471,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,322.91 : 846,395.19 = 341,393.76 : x
  2. Step 2: Convert to fraction form
    613,322.91/846,395.19 = 341,393.76/x
  3. Step 3: Cross multiply
    613,322.91x = 846,395.19 × 341,393.76
  4. Step 4: Simplify right side
    613,322.91x = 288,954,036,360.01
  5. Step 5: Solve for x
    x = 288,954,036,360.01/613,322.91
  6. Step 6: Final answer
    x = 471,128.72

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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.