Home / 326,350.80-489,526.20-186,123.60

Finding the Fourth Proportional to 326,350.80, 489,526.20 and 186,123.60

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Solution

The fourth proportional to 326,350.80, 489,526.20 and 186,123.60 is: 279,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,350.80 : 489,526.20 = 186,123.60 : x
  2. Step 2: Convert to fraction form
    326,350.80/489,526.20 = 186,123.60/x
  3. Step 3: Cross multiply
    326,350.80x = 489,526.20 × 186,123.60
  4. Step 4: Simplify right side
    326,350.80x = 91,112,378,638.32
  5. Step 5: Solve for x
    x = 91,112,378,638.32/326,350.80
  6. Step 6: Final answer
    x = 279,185.40

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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.