Home / 628,707.63-943,061.75-207,983.51

Finding the Fourth Proportional to 628,707.63, 943,061.75 and 207,983.51

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Solution

The fourth proportional to 628,707.63, 943,061.75 and 207,983.51 is: 311,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,707.63 : 943,061.75 = 207,983.51 : x
  2. Step 2: Convert to fraction form
    628,707.63/943,061.75 = 207,983.51/x
  3. Step 3: Cross multiply
    628,707.63x = 943,061.75 × 207,983.51
  4. Step 4: Simplify right side
    628,707.63x = 196,141,292,911.74
  5. Step 5: Solve for x
    x = 196,141,292,911.74/628,707.63
  6. Step 6: Final answer
    x = 311,975.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.