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Finding the Fourth Proportional to 626,970.40, 940,455.60 and 623,471.20

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Solution

The fourth proportional to 626,970.40, 940,455.60 and 623,471.20 is: 935,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,970.40 : 940,455.60 = 623,471.20 : x
  2. Step 2: Convert to fraction form
    626,970.40/940,455.60 = 623,471.20/x
  3. Step 3: Cross multiply
    626,970.40x = 940,455.60 × 623,471.20
  4. Step 4: Simplify right side
    626,970.40x = 586,346,981,478.72
  5. Step 5: Solve for x
    x = 586,346,981,478.72/626,970.40
  6. Step 6: Final answer
    x = 935,206.80

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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.