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Finding the Fourth Proportional to 671,496.60, 1,008,411.30 and 356,568.60

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Solution

The fourth proportional to 671,496.60, 1,008,411.30 and 356,568.60 is: 535,472.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,496.60 : 1,008,411.30 = 356,568.60 : x
  2. Step 2: Convert to fraction form
    671,496.60/1,008,411.30 = 356,568.60/x
  3. Step 3: Cross multiply
    671,496.60x = 1,008,411.30 × 356,568.60
  4. Step 4: Simplify right side
    671,496.60x = 359,567,805,465.18
  5. Step 5: Solve for x
    x = 359,567,805,465.18/671,496.60
  6. Step 6: Final answer
    x = 535,472.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.