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Finding the Fourth Proportional to 469,923.26, 648,476.72 and 255,058.74

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Solution

The fourth proportional to 469,923.26, 648,476.72 and 255,058.74 is: 351,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,923.26 : 648,476.72 = 255,058.74 : x
  2. Step 2: Convert to fraction form
    469,923.26/648,476.72 = 255,058.74/x
  3. Step 3: Cross multiply
    469,923.26x = 648,476.72 × 255,058.74
  4. Step 4: Simplify right side
    469,923.26x = 165,399,654,803.71
  5. Step 5: Solve for x
    x = 165,399,654,803.71/469,923.26
  6. Step 6: Final answer
    x = 351,971.63

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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.