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Finding the Fourth Proportional to 452,492.72, 624,441.21 and 251,288.72

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Solution

The fourth proportional to 452,492.72, 624,441.21 and 251,288.72 is: 346,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,492.72 : 624,441.21 = 251,288.72 : x
  2. Step 2: Convert to fraction form
    452,492.72/624,441.21 = 251,288.72/x
  3. Step 3: Cross multiply
    452,492.72x = 624,441.21 × 251,288.72
  4. Step 4: Simplify right side
    452,492.72x = 156,915,032,376.15
  5. Step 5: Solve for x
    x = 156,915,032,376.15/452,492.72
  6. Step 6: Final answer
    x = 346,779.13

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1.5x scale

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.