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Finding the Fourth Proportional to 491,435.10, 737,152.65 and 191,925.45

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Solution

The fourth proportional to 491,435.10, 737,152.65 and 191,925.45 is: 287,888.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,435.10 : 737,152.65 = 191,925.45 : x
  2. Step 2: Convert to fraction form
    491,435.10/737,152.65 = 191,925.45/x
  3. Step 3: Cross multiply
    491,435.10x = 737,152.65 × 191,925.45
  4. Step 4: Simplify right side
    491,435.10x = 141,478,354,069.94
  5. Step 5: Solve for x
    x = 141,478,354,069.94/491,435.10
  6. Step 6: Final answer
    x = 287,888.18

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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.