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Finding the Fourth Proportional to 319,303.89, 440,591.40 and 183,343.77

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Solution

The fourth proportional to 319,303.89, 440,591.40 and 183,343.77 is: 252,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,303.89 : 440,591.40 = 183,343.77 : x
  2. Step 2: Convert to fraction form
    319,303.89/440,591.40 = 183,343.77/x
  3. Step 3: Cross multiply
    319,303.89x = 440,591.40 × 183,343.77
  4. Step 4: Simplify right side
    319,303.89x = 80,779,688,305.58
  5. Step 5: Solve for x
    x = 80,779,688,305.58/319,303.89
  6. Step 6: Final answer
    x = 252,986.86

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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.