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Finding the Fourth Proportional to 519,176.45, 716,459.34 and 301,405.33

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Solution

The fourth proportional to 519,176.45, 716,459.34 and 301,405.33 is: 415,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,176.45 : 716,459.34 = 301,405.33 : x
  2. Step 2: Convert to fraction form
    519,176.45/716,459.34 = 301,405.33/x
  3. Step 3: Cross multiply
    519,176.45x = 716,459.34 × 301,405.33
  4. Step 4: Simplify right side
    519,176.45x = 215,944,663,569.59
  5. Step 5: Solve for x
    x = 215,944,663,569.59/519,176.45
  6. Step 6: Final answer
    x = 415,936.94

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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.