Home / 612,739.40-844,986.67-408,798.61

Finding the Fourth Proportional to 612,739.40, 844,986.67 and 408,798.61

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Solution

The fourth proportional to 612,739.40, 844,986.67 and 408,798.61 is: 563,745.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,739.40 : 844,986.67 = 408,798.61 : x
  2. Step 2: Convert to fraction form
    612,739.40/844,986.67 = 408,798.61/x
  3. Step 3: Cross multiply
    612,739.40x = 844,986.67 × 408,798.61
  4. Step 4: Simplify right side
    612,739.40x = 345,429,373,030.07
  5. Step 5: Solve for x
    x = 345,429,373,030.07/612,739.40
  6. Step 6: Final answer
    x = 563,745.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.