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Finding the Fourth Proportional to 579,216.60, 867,075.30 and 509,232.60

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Solution

The fourth proportional to 579,216.60, 867,075.30 and 509,232.60 is: 762,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,216.60 : 867,075.30 = 509,232.60 : x
  2. Step 2: Convert to fraction form
    579,216.60/867,075.30 = 509,232.60/x
  3. Step 3: Cross multiply
    579,216.60x = 867,075.30 × 509,232.60
  4. Step 4: Simplify right side
    579,216.60x = 441,543,009,414.78
  5. Step 5: Solve for x
    x = 441,543,009,414.78/579,216.60
  6. Step 6: Final answer
    x = 762,310.70

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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.