Home / 957,870.90-1,321,921.35-528,150.51

Finding the Fourth Proportional to 957,870.90, 1,321,921.35 and 528,150.51

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Solution

The fourth proportional to 957,870.90, 1,321,921.35 and 528,150.51 is: 728,880.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,870.90 : 1,321,921.35 = 528,150.51 : x
  2. Step 2: Convert to fraction form
    957,870.90/1,321,921.35 = 528,150.51/x
  3. Step 3: Cross multiply
    957,870.90x = 1,321,921.35 × 528,150.51
  4. Step 4: Simplify right side
    957,870.90x = 698,173,435,182.39
  5. Step 5: Solve for x
    x = 698,173,435,182.39/957,870.90
  6. Step 6: Final answer
    x = 728,880.52

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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.