Home / 644,225.56-888,966.30-376,109.08

Finding the Fourth Proportional to 644,225.56, 888,966.30 and 376,109.08

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Solution

The fourth proportional to 644,225.56, 888,966.30 and 376,109.08 is: 518,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,225.56 : 888,966.30 = 376,109.08 : x
  2. Step 2: Convert to fraction form
    644,225.56/888,966.30 = 376,109.08/x
  3. Step 3: Cross multiply
    644,225.56x = 888,966.30 × 376,109.08
  4. Step 4: Simplify right side
    644,225.56x = 334,348,297,244.00
  5. Step 5: Solve for x
    x = 334,348,297,244.00/644,225.56
  6. Step 6: Final answer
    x = 518,992.60

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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.