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Finding the Fourth Proportional to 452,445.52, 678,436.20 and 239,328.44

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Solution

The fourth proportional to 452,445.52, 678,436.20 and 239,328.44 is: 358,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,445.52 : 678,436.20 = 239,328.44 : x
  2. Step 2: Convert to fraction form
    452,445.52/678,436.20 = 239,328.44/x
  3. Step 3: Cross multiply
    452,445.52x = 678,436.20 × 239,328.44
  4. Step 4: Simplify right side
    452,445.52x = 162,369,077,385.53
  5. Step 5: Solve for x
    x = 162,369,077,385.53/452,445.52
  6. Step 6: Final answer
    x = 358,869.90

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1.5x scale

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.