Home / 938,829.16-1,295,584.59-509,109.18

Finding the Fourth Proportional to 938,829.16, 1,295,584.59 and 509,109.18

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Solution

The fourth proportional to 938,829.16, 1,295,584.59 and 509,109.18 is: 702,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,829.16 : 1,295,584.59 = 509,109.18 : x
  2. Step 2: Convert to fraction form
    938,829.16/1,295,584.59 = 509,109.18/x
  3. Step 3: Cross multiply
    938,829.16x = 1,295,584.59 × 509,109.18
  4. Step 4: Simplify right side
    938,829.16x = 659,593,999,212.07
  5. Step 5: Solve for x
    x = 659,593,999,212.07/938,829.16
  6. Step 6: Final answer
    x = 702,570.85

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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.