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Finding the Fourth Proportional to 472,090.52, 651,476.68 and 257,232.36

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Solution

The fourth proportional to 472,090.52, 651,476.68 and 257,232.36 is: 354,976.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,090.52 : 651,476.68 = 257,232.36 : x
  2. Step 2: Convert to fraction form
    472,090.52/651,476.68 = 257,232.36/x
  3. Step 3: Cross multiply
    472,090.52x = 651,476.68 × 257,232.36
  4. Step 4: Simplify right side
    472,090.52x = 167,580,883,881.37
  5. Step 5: Solve for x
    x = 167,580,883,881.37/472,090.52
  6. Step 6: Final answer
    x = 354,976.17

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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.