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Finding the Fourth Proportional to 304,434.90, 426,908.70 and 304,434.90

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Solution

The fourth proportional to 304,434.90, 426,908.70 and 304,434.90 is: 426,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,434.90 : 426,908.70 = 304,434.90 : x
  2. Step 2: Convert to fraction form
    304,434.90/426,908.70 = 304,434.90/x
  3. Step 3: Cross multiply
    304,434.90x = 426,908.70 × 304,434.90
  4. Step 4: Simplify right side
    304,434.90x = 129,965,907,393.63
  5. Step 5: Solve for x
    x = 129,965,907,393.63/304,434.90
  6. Step 6: Final answer
    x = 426,908.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.