Home / 671,835.27-927,253.40-385,450.05

Finding the Fourth Proportional to 671,835.27, 927,253.40 and 385,450.05

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Solution

The fourth proportional to 671,835.27, 927,253.40 and 385,450.05 is: 531,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,835.27 : 927,253.40 = 385,450.05 : x
  2. Step 2: Convert to fraction form
    671,835.27/927,253.40 = 385,450.05/x
  3. Step 3: Cross multiply
    671,835.27x = 927,253.40 × 385,450.05
  4. Step 4: Simplify right side
    671,835.27x = 357,409,867,465.42
  5. Step 5: Solve for x
    x = 357,409,867,465.42/671,835.27
  6. Step 6: Final answer
    x = 531,990.33

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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.