Home / 957,914.80-1,321,931.64-528,210.16

Finding the Fourth Proportional to 957,914.80, 1,321,931.64 and 528,210.16

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Solution

The fourth proportional to 957,914.80, 1,321,931.64 and 528,210.16 is: 728,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,914.80 : 1,321,931.64 = 528,210.16 : x
  2. Step 2: Convert to fraction form
    957,914.80/1,321,931.64 = 528,210.16/x
  3. Step 3: Cross multiply
    957,914.80x = 1,321,931.64 × 528,210.16
  4. Step 4: Simplify right side
    957,914.80x = 698,257,723,073.46
  5. Step 5: Solve for x
    x = 698,257,723,073.46/957,914.80
  6. Step 6: Final answer
    x = 728,935.10

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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.