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Finding the Fourth Proportional to 304,420.70, 427,122.10 and 304,420.70

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Solution

The fourth proportional to 304,420.70, 427,122.10 and 304,420.70 is: 427,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,420.70 : 427,122.10 = 304,420.70 : x
  2. Step 2: Convert to fraction form
    304,420.70/427,122.10 = 304,420.70/x
  3. Step 3: Cross multiply
    304,420.70x = 427,122.10 × 304,420.70
  4. Step 4: Simplify right side
    304,420.70x = 130,024,808,667.47
  5. Step 5: Solve for x
    x = 130,024,808,667.47/304,420.70
  6. Step 6: Final answer
    x = 427,122.10

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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.