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Finding the Fourth Proportional to 671,382.15, 926,528.24 and 365,478.90

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Solution

The fourth proportional to 671,382.15, 926,528.24 and 365,478.90 is: 504,372.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,382.15 : 926,528.24 = 365,478.90 : x
  2. Step 2: Convert to fraction form
    671,382.15/926,528.24 = 365,478.90/x
  3. Step 3: Cross multiply
    671,382.15x = 926,528.24 × 365,478.90
  4. Step 4: Simplify right side
    671,382.15x = 338,626,520,146.74
  5. Step 5: Solve for x
    x = 338,626,520,146.74/671,382.15
  6. Step 6: Final answer
    x = 504,372.24

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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.