Home / 1,685,728.80-2,528,593.20-977,578.20

Finding the Fourth Proportional to 1,685,728.80, 2,528,593.20 and 977,578.20

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Solution

The fourth proportional to 1,685,728.80, 2,528,593.20 and 977,578.20 is: 1,466,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,728.80 : 2,528,593.20 = 977,578.20 : x
  2. Step 2: Convert to fraction form
    1,685,728.80/2,528,593.20 = 977,578.20/x
  3. Step 3: Cross multiply
    1,685,728.80x = 2,528,593.20 × 977,578.20
  4. Step 4: Simplify right side
    1,685,728.80x = 2,471,897,588,988.24
  5. Step 5: Solve for x
    x = 2,471,897,588,988.24/1,685,728.80
  6. Step 6: Final answer
    x = 1,466,367.30

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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.