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Finding the Fourth Proportional to 423,276.84, 584,133.12 and 242,018.28

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Solution

The fourth proportional to 423,276.84, 584,133.12 and 242,018.28 is: 333,991.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,276.84 : 584,133.12 = 242,018.28 : x
  2. Step 2: Convert to fraction form
    423,276.84/584,133.12 = 242,018.28/x
  3. Step 3: Cross multiply
    423,276.84x = 584,133.12 × 242,018.28
  4. Step 4: Simplify right side
    423,276.84x = 141,370,892,993.43
  5. Step 5: Solve for x
    x = 141,370,892,993.43/423,276.84
  6. Step 6: Final answer
    x = 333,991.56

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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.