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Finding the Fourth Proportional to 613,422.90, 846,542.40 and 334,038.58

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Solution

The fourth proportional to 613,422.90, 846,542.40 and 334,038.58 is: 460,983.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,422.90 : 846,542.40 = 334,038.58 : x
  2. Step 2: Convert to fraction form
    613,422.90/846,542.40 = 334,038.58/x
  3. Step 3: Cross multiply
    613,422.90x = 846,542.40 × 334,038.58
  4. Step 4: Simplify right side
    613,422.90x = 282,777,821,205.79
  5. Step 5: Solve for x
    x = 282,777,821,205.79/613,422.90
  6. Step 6: Final answer
    x = 460,983.48

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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.