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Finding the Fourth Proportional to 635,482.76, 953,341.50 and 209,042.60

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Solution

The fourth proportional to 635,482.76, 953,341.50 and 209,042.60 is: 313,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,482.76 : 953,341.50 = 209,042.60 : x
  2. Step 2: Convert to fraction form
    635,482.76/953,341.50 = 209,042.60/x
  3. Step 3: Cross multiply
    635,482.76x = 953,341.50 × 209,042.60
  4. Step 4: Simplify right side
    635,482.76x = 199,288,985,847.90
  5. Step 5: Solve for x
    x = 199,288,985,847.90/635,482.76
  6. Step 6: Final answer
    x = 313,602.51

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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.