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Finding the Fourth Proportional to 626,854.60, 940,433.10 and 206,108.20

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Solution

The fourth proportional to 626,854.60, 940,433.10 and 206,108.20 is: 309,212.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,854.60 : 940,433.10 = 206,108.20 : x
  2. Step 2: Convert to fraction form
    626,854.60/940,433.10 = 206,108.20/x
  3. Step 3: Cross multiply
    626,854.60x = 940,433.10 × 206,108.20
  4. Step 4: Simplify right side
    626,854.60x = 193,830,973,461.42
  5. Step 5: Solve for x
    x = 193,830,973,461.42/626,854.60
  6. Step 6: Final answer
    x = 309,212.01

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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.