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Finding the Fourth Proportional to 567,440.88, 783,139.36 and 325,799.20

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Solution

The fourth proportional to 567,440.88, 783,139.36 and 325,799.20 is: 449,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,440.88 : 783,139.36 = 325,799.20 : x
  2. Step 2: Convert to fraction form
    567,440.88/783,139.36 = 325,799.20/x
  3. Step 3: Cross multiply
    567,440.88x = 783,139.36 × 325,799.20
  4. Step 4: Simplify right side
    567,440.88x = 255,146,176,976.51
  5. Step 5: Solve for x
    x = 255,146,176,976.51/567,440.88
  6. Step 6: Final answer
    x = 449,643.63

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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.