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Finding the Fourth Proportional to 423,511.80, 584,279.60 and 242,126.28

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Solution

The fourth proportional to 423,511.80, 584,279.60 and 242,126.28 is: 334,038.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,511.80 : 584,279.60 = 242,126.28 : x
  2. Step 2: Convert to fraction form
    423,511.80/584,279.60 = 242,126.28/x
  3. Step 3: Cross multiply
    423,511.80x = 584,279.60 × 242,126.28
  4. Step 4: Simplify right side
    423,511.80x = 141,469,444,817.26
  5. Step 5: Solve for x
    x = 141,469,444,817.26/423,511.80
  6. Step 6: Final answer
    x = 334,038.97

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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.