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Finding the Fourth Proportional to 459,753.86, 634,404.60 and 255,756.57

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Solution

The fourth proportional to 459,753.86, 634,404.60 and 255,756.57 is: 352,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,753.86 : 634,404.60 = 255,756.57 : x
  2. Step 2: Convert to fraction form
    459,753.86/634,404.60 = 255,756.57/x
  3. Step 3: Cross multiply
    459,753.86x = 634,404.60 × 255,756.57
  4. Step 4: Simplify right side
    459,753.86x = 162,253,144,488.22
  5. Step 5: Solve for x
    x = 162,253,144,488.22/459,753.86
  6. Step 6: Final answer
    x = 352,913.07

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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.