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Finding the Fourth Proportional to 589,920.40, 885,010.20 and 190,493.20

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Solution

The fourth proportional to 589,920.40, 885,010.20 and 190,493.20 is: 285,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,920.40 : 885,010.20 = 190,493.20 : x
  2. Step 2: Convert to fraction form
    589,920.40/885,010.20 = 190,493.20/x
  3. Step 3: Cross multiply
    589,920.40x = 885,010.20 × 190,493.20
  4. Step 4: Simplify right side
    589,920.40x = 168,588,425,030.64
  5. Step 5: Solve for x
    x = 168,588,425,030.64/589,920.40
  6. Step 6: Final answer
    x = 285,781.65

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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.