Home / 714,241.48-985,665.27-391,981.57

Finding the Fourth Proportional to 714,241.48, 985,665.27 and 391,981.57

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Solution

The fourth proportional to 714,241.48, 985,665.27 and 391,981.57 is: 540,941.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,241.48 : 985,665.27 = 391,981.57 : x
  2. Step 2: Convert to fraction form
    714,241.48/985,665.27 = 391,981.57/x
  3. Step 3: Cross multiply
    714,241.48x = 985,665.27 × 391,981.57
  4. Step 4: Simplify right side
    714,241.48x = 386,362,620,029.07
  5. Step 5: Solve for x
    x = 386,362,620,029.07/714,241.48
  6. Step 6: Final answer
    x = 540,941.17

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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.