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Finding the Fourth Proportional to 698,788.32, 964,496.88 and 651,510.24

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Solution

The fourth proportional to 698,788.32, 964,496.88 and 651,510.24 is: 899,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,788.32 : 964,496.88 = 651,510.24 : x
  2. Step 2: Convert to fraction form
    698,788.32/964,496.88 = 651,510.24/x
  3. Step 3: Cross multiply
    698,788.32x = 964,496.88 × 651,510.24
  4. Step 4: Simplify right side
    698,788.32x = 628,379,593,768.05
  5. Step 5: Solve for x
    x = 628,379,593,768.05/698,788.32
  6. Step 6: Final answer
    x = 899,241.70

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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.