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Finding the Fourth Proportional to 304,410.30, 455,740.65 and 186,312.30

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Solution

The fourth proportional to 304,410.30, 455,740.65 and 186,312.30 is: 278,933.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,410.30 : 455,740.65 = 186,312.30 : x
  2. Step 2: Convert to fraction form
    304,410.30/455,740.65 = 186,312.30/x
  3. Step 3: Cross multiply
    304,410.30x = 455,740.65 × 186,312.30
  4. Step 4: Simplify right side
    304,410.30x = 84,910,088,705.00
  5. Step 5: Solve for x
    x = 84,910,088,705.00/304,410.30
  6. Step 6: Final answer
    x = 278,933.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.