Home / 727,434.60-1,091,346.30-649,091.40

Finding the Fourth Proportional to 727,434.60, 1,091,346.30 and 649,091.40

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Solution

The fourth proportional to 727,434.60, 1,091,346.30 and 649,091.40 is: 973,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,434.60 : 1,091,346.30 = 649,091.40 : x
  2. Step 2: Convert to fraction form
    727,434.60/1,091,346.30 = 649,091.40/x
  3. Step 3: Cross multiply
    727,434.60x = 1,091,346.30 × 649,091.40
  4. Step 4: Simplify right side
    727,434.60x = 708,383,497,751.82
  5. Step 5: Solve for x
    x = 708,383,497,751.82/727,434.60
  6. Step 6: Final answer
    x = 973,810.56

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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.