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Finding the Fourth Proportional to 590,111.20, 885,604.20 and 432,647.20

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Solution

The fourth proportional to 590,111.20, 885,604.20 and 432,647.20 is: 649,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,111.20 : 885,604.20 = 432,647.20 : x
  2. Step 2: Convert to fraction form
    590,111.20/885,604.20 = 432,647.20/x
  3. Step 3: Cross multiply
    590,111.20x = 885,604.20 × 432,647.20
  4. Step 4: Simplify right side
    590,111.20x = 383,154,177,438.24
  5. Step 5: Solve for x
    x = 383,154,177,438.24/590,111.20
  6. Step 6: Final answer
    x = 649,291.49

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Half scale
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Double scale
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Similar ratio
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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.