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Finding the Fourth Proportional to 474,678.24, 655,058.06 and 256,886.94

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Solution

The fourth proportional to 474,678.24, 655,058.06 and 256,886.94 is: 354,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,678.24 : 655,058.06 = 256,886.94 : x
  2. Step 2: Convert to fraction form
    474,678.24/655,058.06 = 256,886.94/x
  3. Step 3: Cross multiply
    474,678.24x = 655,058.06 × 256,886.94
  4. Step 4: Simplify right side
    474,678.24x = 168,275,860,555.74
  5. Step 5: Solve for x
    x = 168,275,860,555.74/474,678.24
  6. Step 6: Final answer
    x = 354,505.11

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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.