Home / 644,152.90-888,913.92-357,665.62

Finding the Fourth Proportional to 644,152.90, 888,913.92 and 357,665.62

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Solution

The fourth proportional to 644,152.90, 888,913.92 and 357,665.62 is: 493,569.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,152.90 : 888,913.92 = 357,665.62 : x
  2. Step 2: Convert to fraction form
    644,152.90/888,913.92 = 357,665.62/x
  3. Step 3: Cross multiply
    644,152.90x = 888,913.92 × 357,665.62
  4. Step 4: Simplify right side
    644,152.90x = 317,933,948,323.43
  5. Step 5: Solve for x
    x = 317,933,948,323.43/644,152.90
  6. Step 6: Final answer
    x = 493,569.07

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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.