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Finding the Fourth Proportional to 402,891.94, 556,069.85 and 230,925.18

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Solution

The fourth proportional to 402,891.94, 556,069.85 and 230,925.18 is: 318,722.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,891.94 : 556,069.85 = 230,925.18 : x
  2. Step 2: Convert to fraction form
    402,891.94/556,069.85 = 230,925.18/x
  3. Step 3: Cross multiply
    402,891.94x = 556,069.85 × 230,925.18
  4. Step 4: Simplify right side
    402,891.94x = 128,410,527,423.47
  5. Step 5: Solve for x
    x = 128,410,527,423.47/402,891.94
  6. Step 6: Final answer
    x = 318,722.01

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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.