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Finding the Fourth Proportional to 459,751.68, 634,417.92 and 268,742.88

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Solution

The fourth proportional to 459,751.68, 634,417.92 and 268,742.88 is: 370,842.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,751.68 : 634,417.92 = 268,742.88 : x
  2. Step 2: Convert to fraction form
    459,751.68/634,417.92 = 268,742.88/x
  3. Step 3: Cross multiply
    459,751.68x = 634,417.92 × 268,742.88
  4. Step 4: Simplify right side
    459,751.68x = 170,495,298,944.41
  5. Step 5: Solve for x
    x = 170,495,298,944.41/459,751.68
  6. Step 6: Final answer
    x = 370,842.14

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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.