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Finding the Fourth Proportional to 633,677, 874,258.98 and 361,549.40

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Solution

The fourth proportional to 633,677, 874,258.98 and 361,549.40 is: 498,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,677 : 874,258.98 = 361,549.40 : x
  2. Step 2: Convert to fraction form
    633,677/874,258.98 = 361,549.40/x
  3. Step 3: Cross multiply
    633,677x = 874,258.98 × 361,549.40
  4. Step 4: Simplify right side
    633,677x = 316,087,809,663.61
  5. Step 5: Solve for x
    x = 316,087,809,663.61/633,677
  6. Step 6: Final answer
    x = 498,815.34

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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.