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Finding the Fourth Proportional to 304,426.70, 427,130.50 and 304,426.70

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Solution

The fourth proportional to 304,426.70, 427,130.50 and 304,426.70 is: 427,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,426.70 : 427,130.50 = 304,426.70 : x
  2. Step 2: Convert to fraction form
    304,426.70/427,130.50 = 304,426.70/x
  3. Step 3: Cross multiply
    304,426.70x = 427,130.50 × 304,426.70
  4. Step 4: Simplify right side
    304,426.70x = 130,029,928,584.35
  5. Step 5: Solve for x
    x = 130,029,928,584.35/304,426.70
  6. Step 6: Final answer
    x = 427,130.50

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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.