Home / 718,981.02-992,016.90-439,507.62

Finding the Fourth Proportional to 718,981.02, 992,016.90 and 439,507.62

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Solution

The fourth proportional to 718,981.02, 992,016.90 and 439,507.62 is: 606,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,981.02 : 992,016.90 = 439,507.62 : x
  2. Step 2: Convert to fraction form
    718,981.02/992,016.90 = 439,507.62/x
  3. Step 3: Cross multiply
    718,981.02x = 992,016.90 × 439,507.62
  4. Step 4: Simplify right side
    718,981.02x = 435,998,986,718.78
  5. Step 5: Solve for x
    x = 435,998,986,718.78/718,981.02
  6. Step 6: Final answer
    x = 606,412.37

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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.