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Finding the Fourth Proportional to 453,636.48, 626,042.88 and 252,436.80

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Solution

The fourth proportional to 453,636.48, 626,042.88 and 252,436.80 is: 348,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,636.48 : 626,042.88 = 252,436.80 : x
  2. Step 2: Convert to fraction form
    453,636.48/626,042.88 = 252,436.80/x
  3. Step 3: Cross multiply
    453,636.48x = 626,042.88 × 252,436.80
  4. Step 4: Simplify right side
    453,636.48x = 158,036,261,289.98
  5. Step 5: Solve for x
    x = 158,036,261,289.98/453,636.48
  6. Step 6: Final answer
    x = 348,376.44

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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.