Home / 838,401.40-1,255,131.06-553,569.40

Finding the Fourth Proportional to 838,401.40, 1,255,131.06 and 553,569.40

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Solution

The fourth proportional to 838,401.40, 1,255,131.06 and 553,569.40 is: 828,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,401.40 : 1,255,131.06 = 553,569.40 : x
  2. Step 2: Convert to fraction form
    838,401.40/1,255,131.06 = 553,569.40/x
  3. Step 3: Cross multiply
    838,401.40x = 1,255,131.06 × 553,569.40
  4. Step 4: Simplify right side
    838,401.40x = 694,802,147,805.56
  5. Step 5: Solve for x
    x = 694,802,147,805.56/838,401.40
  6. Step 6: Final answer
    x = 828,722.55

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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.