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Finding the Fourth Proportional to 519,170.64, 716,177.88 and 358,105.38

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Solution

The fourth proportional to 519,170.64, 716,177.88 and 358,105.38 is: 493,993.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,170.64 : 716,177.88 = 358,105.38 : x
  2. Step 2: Convert to fraction form
    519,170.64/716,177.88 = 358,105.38/x
  3. Step 3: Cross multiply
    519,170.64x = 716,177.88 × 358,105.38
  4. Step 4: Simplify right side
    519,170.64x = 256,467,151,864.99
  5. Step 5: Solve for x
    x = 256,467,151,864.99/519,170.64
  6. Step 6: Final answer
    x = 493,993.94

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Double scale
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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.