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Finding the Fourth Proportional to 439,343.77, 658,886.47 and 186,622.25

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Solution

The fourth proportional to 439,343.77, 658,886.47 and 186,622.25 is: 279,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,343.77 : 658,886.47 = 186,622.25 : x
  2. Step 2: Convert to fraction form
    439,343.77/658,886.47 = 186,622.25/x
  3. Step 3: Cross multiply
    439,343.77x = 658,886.47 × 186,622.25
  4. Step 4: Simplify right side
    439,343.77x = 122,962,875,525.96
  5. Step 5: Solve for x
    x = 122,962,875,525.96/439,343.77
  6. Step 6: Final answer
    x = 279,878.50

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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.