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Finding the Fourth Proportional to 604,885.46, 906,718.26 and 380,406.32

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Solution

The fourth proportional to 604,885.46, 906,718.26 and 380,406.32 is: 570,225.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,885.46 : 906,718.26 = 380,406.32 : x
  2. Step 2: Convert to fraction form
    604,885.46/906,718.26 = 380,406.32/x
  3. Step 3: Cross multiply
    604,885.46x = 906,718.26 × 380,406.32
  4. Step 4: Simplify right side
    604,885.46x = 344,921,356,563.40
  5. Step 5: Solve for x
    x = 344,921,356,563.40/604,885.46
  6. Step 6: Final answer
    x = 570,225.90

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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.