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Finding the Fourth Proportional to 657,501.40, 986,252.10 and 551,213.20

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Solution

The fourth proportional to 657,501.40, 986,252.10 and 551,213.20 is: 826,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,501.40 : 986,252.10 = 551,213.20 : x
  2. Step 2: Convert to fraction form
    657,501.40/986,252.10 = 551,213.20/x
  3. Step 3: Cross multiply
    657,501.40x = 986,252.10 × 551,213.20
  4. Step 4: Simplify right side
    657,501.40x = 543,635,176,047.72
  5. Step 5: Solve for x
    x = 543,635,176,047.72/657,501.40
  6. Step 6: Final answer
    x = 826,819.80

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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.