Home / 326,316.33-489,416.10-207,635.13

Finding the Fourth Proportional to 326,316.33, 489,416.10 and 207,635.13

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Solution

The fourth proportional to 326,316.33, 489,416.10 and 207,635.13 is: 311,415.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,316.33 : 489,416.10 = 207,635.13 : x
  2. Step 2: Convert to fraction form
    326,316.33/489,416.10 = 207,635.13/x
  3. Step 3: Cross multiply
    326,316.33x = 489,416.10 × 207,635.13
  4. Step 4: Simplify right side
    326,316.33x = 101,619,975,547.59
  5. Step 5: Solve for x
    x = 101,619,975,547.59/326,316.33
  6. Step 6: Final answer
    x = 311,415.54

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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.