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Finding the Fourth Proportional to 470,192.88, 648,870.84 and 255,334.80

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Solution

The fourth proportional to 470,192.88, 648,870.84 and 255,334.80 is: 352,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,192.88 : 648,870.84 = 255,334.80 : x
  2. Step 2: Convert to fraction form
    470,192.88/648,870.84 = 255,334.80/x
  3. Step 3: Cross multiply
    470,192.88x = 648,870.84 × 255,334.80
  4. Step 4: Simplify right side
    470,192.88x = 165,679,306,157.23
  5. Step 5: Solve for x
    x = 165,679,306,157.23/470,192.88
  6. Step 6: Final answer
    x = 352,364.56

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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.