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Finding the Fourth Proportional to 459,863.68, 634,069.06 and 314,739.49

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Solution

The fourth proportional to 459,863.68, 634,069.06 and 314,739.49 is: 433,968.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,863.68 : 634,069.06 = 314,739.49 : x
  2. Step 2: Convert to fraction form
    459,863.68/634,069.06 = 314,739.49/x
  3. Step 3: Cross multiply
    459,863.68x = 634,069.06 × 314,739.49
  4. Step 4: Simplify right side
    459,863.68x = 199,566,573,156.45
  5. Step 5: Solve for x
    x = 199,566,573,156.45/459,863.68
  6. Step 6: Final answer
    x = 433,968.98

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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.