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Finding the Fourth Proportional to 580,712.32, 801,362.28 and 326,074.24

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Solution

The fourth proportional to 580,712.32, 801,362.28 and 326,074.24 is: 449,970.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,712.32 : 801,362.28 = 326,074.24 : x
  2. Step 2: Convert to fraction form
    580,712.32/801,362.28 = 326,074.24/x
  3. Step 3: Cross multiply
    580,712.32x = 801,362.28 × 326,074.24
  4. Step 4: Simplify right side
    580,712.32x = 261,303,596,415.67
  5. Step 5: Solve for x
    x = 261,303,596,415.67/580,712.32
  6. Step 6: Final answer
    x = 449,970.82

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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.