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Finding the Fourth Proportional to 519,043.40, 716,278.74 and 292,687.32

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Solution

The fourth proportional to 519,043.40, 716,278.74 and 292,687.32 is: 403,907.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,043.40 : 716,278.74 = 292,687.32 : x
  2. Step 2: Convert to fraction form
    519,043.40/716,278.74 = 292,687.32/x
  3. Step 3: Cross multiply
    519,043.40x = 716,278.74 × 292,687.32
  4. Step 4: Simplify right side
    519,043.40x = 209,645,704,783.58
  5. Step 5: Solve for x
    x = 209,645,704,783.58/519,043.40
  6. Step 6: Final answer
    x = 403,907.85

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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.