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Finding the Fourth Proportional to 469,980.93, 648,585.44 and 255,120.98

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Solution

The fourth proportional to 469,980.93, 648,585.44 and 255,120.98 is: 352,073.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,980.93 : 648,585.44 = 255,120.98 : x
  2. Step 2: Convert to fraction form
    469,980.93/648,585.44 = 255,120.98/x
  3. Step 3: Cross multiply
    469,980.93x = 648,585.44 × 255,120.98
  4. Step 4: Simplify right side
    469,980.93x = 165,467,748,548.00
  5. Step 5: Solve for x
    x = 165,467,748,548.00/469,980.93
  6. Step 6: Final answer
    x = 352,073.32

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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.