Home / 878,260.62-1,211,983.91-496,279.20

Finding the Fourth Proportional to 878,260.62, 1,211,983.91 and 496,279.20

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Solution

The fourth proportional to 878,260.62, 1,211,983.91 and 496,279.20 is: 684,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,260.62 : 1,211,983.91 = 496,279.20 : x
  2. Step 2: Convert to fraction form
    878,260.62/1,211,983.91 = 496,279.20/x
  3. Step 3: Cross multiply
    878,260.62x = 1,211,983.91 × 496,279.20
  4. Step 4: Simplify right side
    878,260.62x = 601,482,411,983.83
  5. Step 5: Solve for x
    x = 601,482,411,983.83/878,260.62
  6. Step 6: Final answer
    x = 684,856.40

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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.