Home / 957,756.15-1,321,762.86-528,035.49

Finding the Fourth Proportional to 957,756.15, 1,321,762.86 and 528,035.49

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Solution

The fourth proportional to 957,756.15, 1,321,762.86 and 528,035.49 is: 728,721.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,756.15 : 1,321,762.86 = 528,035.49 : x
  2. Step 2: Convert to fraction form
    957,756.15/1,321,762.86 = 528,035.49/x
  3. Step 3: Cross multiply
    957,756.15x = 1,321,762.86 × 528,035.49
  4. Step 4: Simplify right side
    957,756.15x = 697,937,699,443.90
  5. Step 5: Solve for x
    x = 697,937,699,443.90/957,756.15
  6. Step 6: Final answer
    x = 728,721.71

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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.