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Finding the Fourth Proportional to 656,633.76, 906,168.42 and 370,153.83

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Solution

The fourth proportional to 656,633.76, 906,168.42 and 370,153.83 is: 510,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,633.76 : 906,168.42 = 370,153.83 : x
  2. Step 2: Convert to fraction form
    656,633.76/906,168.42 = 370,153.83/x
  3. Step 3: Cross multiply
    656,633.76x = 906,168.42 × 370,153.83
  4. Step 4: Simplify right side
    656,633.76x = 335,421,711,288.05
  5. Step 5: Solve for x
    x = 335,421,711,288.05/656,633.76
  6. Step 6: Final answer
    x = 510,820.08

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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.