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Finding the Fourth Proportional to 579,356.46, 869,100.30 and 519,826.32

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Solution

The fourth proportional to 579,356.46, 869,100.30 and 519,826.32 is: 779,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,356.46 : 869,100.30 = 519,826.32 : x
  2. Step 2: Convert to fraction form
    579,356.46/869,100.30 = 519,826.32/x
  3. Step 3: Cross multiply
    579,356.46x = 869,100.30 × 519,826.32
  4. Step 4: Simplify right side
    579,356.46x = 451,781,210,659.90
  5. Step 5: Solve for x
    x = 451,781,210,659.90/579,356.46
  6. Step 6: Final answer
    x = 779,798.35

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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.