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Finding the Fourth Proportional to 622,871.82, 930,894.48 and 454,746.20

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Solution

The fourth proportional to 622,871.82, 930,894.48 and 454,746.20 is: 679,627.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,871.82 : 930,894.48 = 454,746.20 : x
  2. Step 2: Convert to fraction form
    622,871.82/930,894.48 = 454,746.20/x
  3. Step 3: Cross multiply
    622,871.82x = 930,894.48 × 454,746.20
  4. Step 4: Simplify right side
    622,871.82x = 423,320,722,726.50
  5. Step 5: Solve for x
    x = 423,320,722,726.50/622,871.82
  6. Step 6: Final answer
    x = 679,627.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.