Home / 858,213.52-1,183,510.84-513,994.32

Finding the Fourth Proportional to 858,213.52, 1,183,510.84 and 513,994.32

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Solution

The fourth proportional to 858,213.52, 1,183,510.84 and 513,994.32 is: 708,818.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,213.52 : 1,183,510.84 = 513,994.32 : x
  2. Step 2: Convert to fraction form
    858,213.52/1,183,510.84 = 513,994.32/x
  3. Step 3: Cross multiply
    858,213.52x = 1,183,510.84 × 513,994.32
  4. Step 4: Simplify right side
    858,213.52x = 608,317,849,418.43
  5. Step 5: Solve for x
    x = 608,317,849,418.43/858,213.52
  6. Step 6: Final answer
    x = 708,818.77

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Double scale
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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.