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Finding the Fourth Proportional to 634,588, 951,920.88 and 191,356

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Solution

The fourth proportional to 634,588, 951,920.88 and 191,356 is: 287,045.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,588 : 951,920.88 = 191,356 : x
  2. Step 2: Convert to fraction form
    634,588/951,920.88 = 191,356/x
  3. Step 3: Cross multiply
    634,588x = 951,920.88 × 191,356
  4. Step 4: Simplify right side
    634,588x = 182,155,771,913.28
  5. Step 5: Solve for x
    x = 182,155,771,913.28/634,588
  6. Step 6: Final answer
    x = 287,045.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.