Home / 838,403.40-1,255,134.06-553,571.40

Finding the Fourth Proportional to 838,403.40, 1,255,134.06 and 553,571.40

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Solution

The fourth proportional to 838,403.40, 1,255,134.06 and 553,571.40 is: 828,725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,403.40 : 1,255,134.06 = 553,571.40 : x
  2. Step 2: Convert to fraction form
    838,403.40/1,255,134.06 = 553,571.40/x
  3. Step 3: Cross multiply
    838,403.40x = 1,255,134.06 × 553,571.40
  4. Step 4: Simplify right side
    838,403.40x = 694,806,318,781.88
  5. Step 5: Solve for x
    x = 694,806,318,781.88/838,403.40
  6. Step 6: Final answer
    x = 828,725.55

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Double scale
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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.