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Finding the Fourth Proportional to 459,613.44, 634,193.28 and 278,294.40

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Solution

The fourth proportional to 459,613.44, 634,193.28 and 278,294.40 is: 384,001.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,613.44 : 634,193.28 = 278,294.40 : x
  2. Step 2: Convert to fraction form
    459,613.44/634,193.28 = 278,294.40/x
  3. Step 3: Cross multiply
    459,613.44x = 634,193.28 × 278,294.40
  4. Step 4: Simplify right side
    459,613.44x = 176,492,438,341.63
  5. Step 5: Solve for x
    x = 176,492,438,341.63/459,613.44
  6. Step 6: Final answer
    x = 384,001.91

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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.