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Finding the Fourth Proportional to 423,382.84, 584,279.40 and 242,124.28

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Solution

The fourth proportional to 423,382.84, 584,279.40 and 242,124.28 is: 334,137.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,382.84 : 584,279.40 = 242,124.28 : x
  2. Step 2: Convert to fraction form
    423,382.84/584,279.40 = 242,124.28/x
  3. Step 3: Cross multiply
    423,382.84x = 584,279.40 × 242,124.28
  4. Step 4: Simplify right side
    423,382.84x = 141,468,229,043.83
  5. Step 5: Solve for x
    x = 141,468,229,043.83/423,382.84
  6. Step 6: Final answer
    x = 334,137.84

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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.