Home / 928,836-1,393,271.28-264,005.28

Finding the Fourth Proportional to 928,836, 1,393,271.28 and 264,005.28

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Solution

The fourth proportional to 928,836, 1,393,271.28 and 264,005.28 is: 396,012.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,836 : 1,393,271.28 = 264,005.28 : x
  2. Step 2: Convert to fraction form
    928,836/1,393,271.28 = 264,005.28/x
  3. Step 3: Cross multiply
    928,836x = 1,393,271.28 × 264,005.28
  4. Step 4: Simplify right side
    928,836x = 367,830,974,392.36
  5. Step 5: Solve for x
    x = 367,830,974,392.36/928,836
  6. Step 6: Final answer
    x = 396,012.83

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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.