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Finding the Fourth Proportional to 613,260.60, 920,875.05 and 463,669.80

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Solution

The fourth proportional to 613,260.60, 920,875.05 and 463,669.80 is: 696,248.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,260.60 : 920,875.05 = 463,669.80 : x
  2. Step 2: Convert to fraction form
    613,260.60/920,875.05 = 463,669.80/x
  3. Step 3: Cross multiply
    613,260.60x = 920,875.05 × 463,669.80
  4. Step 4: Simplify right side
    613,260.60x = 426,981,950,258.49
  5. Step 5: Solve for x
    x = 426,981,950,258.49/613,260.60
  6. Step 6: Final answer
    x = 696,248.79

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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.