Home / 957,607.86-1,321,508.07-527,903.40

Finding the Fourth Proportional to 957,607.86, 1,321,508.07 and 527,903.40

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Solution

The fourth proportional to 957,607.86, 1,321,508.07 and 527,903.40 is: 728,511.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,607.86 : 1,321,508.07 = 527,903.40 : x
  2. Step 2: Convert to fraction form
    957,607.86/1,321,508.07 = 527,903.40/x
  3. Step 3: Cross multiply
    957,607.86x = 1,321,508.07 × 527,903.40
  4. Step 4: Simplify right side
    957,607.86x = 697,628,603,280.44
  5. Step 5: Solve for x
    x = 697,628,603,280.44/957,607.86
  6. Step 6: Final answer
    x = 728,511.78

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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.