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Finding the Fourth Proportional to 626,410.80, 940,134.60 and 289,969.20

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Solution

The fourth proportional to 626,410.80, 940,134.60 and 289,969.20 is: 435,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,410.80 : 940,134.60 = 289,969.20 : x
  2. Step 2: Convert to fraction form
    626,410.80/940,134.60 = 289,969.20/x
  3. Step 3: Cross multiply
    626,410.80x = 940,134.60 × 289,969.20
  4. Step 4: Simplify right side
    626,410.80x = 272,610,077,854.32
  5. Step 5: Solve for x
    x = 272,610,077,854.32/626,410.80
  6. Step 6: Final answer
    x = 435,193.77

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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.