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Finding the Fourth Proportional to 607,684.90, 838,434.54 and 349,548.34

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Solution

The fourth proportional to 607,684.90, 838,434.54 and 349,548.34 is: 482,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,684.90 : 838,434.54 = 349,548.34 : x
  2. Step 2: Convert to fraction form
    607,684.90/838,434.54 = 349,548.34/x
  3. Step 3: Cross multiply
    607,684.90x = 838,434.54 × 349,548.34
  4. Step 4: Simplify right side
    607,684.90x = 293,073,401,655.66
  5. Step 5: Solve for x
    x = 293,073,401,655.66/607,684.90
  6. Step 6: Final answer
    x = 482,278.57

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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.