Home / 714,914.22-986,581.44-392,624.40

Finding the Fourth Proportional to 714,914.22, 986,581.44 and 392,624.40

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Solution

The fourth proportional to 714,914.22, 986,581.44 and 392,624.40 is: 541,821.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,914.22 : 986,581.44 = 392,624.40 : x
  2. Step 2: Convert to fraction form
    714,914.22/986,581.44 = 392,624.40/x
  3. Step 3: Cross multiply
    714,914.22x = 986,581.44 × 392,624.40
  4. Step 4: Simplify right side
    714,914.22x = 387,355,945,931.14
  5. Step 5: Solve for x
    x = 387,355,945,931.14/714,914.22
  6. Step 6: Final answer
    x = 541,821.57

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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.