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Finding the Fourth Proportional to 716,412.68, 988,089.80 and 444,328

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Solution

The fourth proportional to 716,412.68, 988,089.80 and 444,328 is: 612,825.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,412.68 : 988,089.80 = 444,328 : x
  2. Step 2: Convert to fraction form
    716,412.68/988,089.80 = 444,328/x
  3. Step 3: Cross multiply
    716,412.68x = 988,089.80 × 444,328
  4. Step 4: Simplify right side
    716,412.68x = 439,035,964,654.40
  5. Step 5: Solve for x
    x = 439,035,964,654.40/716,412.68
  6. Step 6: Final answer
    x = 612,825.51

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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.