Home / 839,392.48-1,258,966.07-412,813.81

Finding the Fourth Proportional to 839,392.48, 1,258,966.07 and 412,813.81

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Solution

The fourth proportional to 839,392.48, 1,258,966.07 and 412,813.81 is: 619,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,392.48 : 1,258,966.07 = 412,813.81 : x
  2. Step 2: Convert to fraction form
    839,392.48/1,258,966.07 = 412,813.81/x
  3. Step 3: Cross multiply
    839,392.48x = 1,258,966.07 × 412,813.81
  4. Step 4: Simplify right side
    839,392.48x = 519,718,580,017.43
  5. Step 5: Solve for x
    x = 519,718,580,017.43/839,392.48
  6. Step 6: Final answer
    x = 619,160.40

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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.