Home / 826,463.40-1,239,607.56-265,454.16

Finding the Fourth Proportional to 826,463.40, 1,239,607.56 and 265,454.16

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Solution

The fourth proportional to 826,463.40, 1,239,607.56 and 265,454.16 is: 398,153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,463.40 : 1,239,607.56 = 265,454.16 : x
  2. Step 2: Convert to fraction form
    826,463.40/1,239,607.56 = 265,454.16/x
  3. Step 3: Cross multiply
    826,463.40x = 1,239,607.56 × 265,454.16
  4. Step 4: Simplify right side
    826,463.40x = 329,058,983,569.45
  5. Step 5: Solve for x
    x = 329,058,983,569.45/826,463.40
  6. Step 6: Final answer
    x = 398,153.12

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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.