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Finding the Fourth Proportional to 583,478.58, 805,264.83 and 338,517.30

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Solution

The fourth proportional to 583,478.58, 805,264.83 and 338,517.30 is: 467,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,478.58 : 805,264.83 = 338,517.30 : x
  2. Step 2: Convert to fraction form
    583,478.58/805,264.83 = 338,517.30/x
  3. Step 3: Cross multiply
    583,478.58x = 805,264.83 × 338,517.30
  4. Step 4: Simplify right side
    583,478.58x = 272,596,076,036.56
  5. Step 5: Solve for x
    x = 272,596,076,036.56/583,478.58
  6. Step 6: Final answer
    x = 467,191.23

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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.