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Finding the Fourth Proportional to 644,160.40, 888,924.27 and 357,673.12

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Solution

The fourth proportional to 644,160.40, 888,924.27 and 357,673.12 is: 493,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,160.40 : 888,924.27 = 357,673.12 : x
  2. Step 2: Convert to fraction form
    644,160.40/888,924.27 = 357,673.12/x
  3. Step 3: Cross multiply
    644,160.40x = 888,924.27 × 357,673.12
  4. Step 4: Simplify right side
    644,160.40x = 317,944,317,094.62
  5. Step 5: Solve for x
    x = 317,944,317,094.62/644,160.40
  6. Step 6: Final answer
    x = 493,579.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.