Home / 939,454.66-1,296,443.10-509,733.73

Finding the Fourth Proportional to 939,454.66, 1,296,443.10 and 509,733.73

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Solution

The fourth proportional to 939,454.66, 1,296,443.10 and 509,733.73 is: 703,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,454.66 : 1,296,443.10 = 509,733.73 : x
  2. Step 2: Convert to fraction form
    939,454.66/1,296,443.10 = 509,733.73/x
  3. Step 3: Cross multiply
    939,454.66x = 1,296,443.10 × 509,733.73
  4. Step 4: Simplify right side
    939,454.66x = 660,840,777,095.76
  5. Step 5: Solve for x
    x = 660,840,777,095.76/939,454.66
  6. Step 6: Final answer
    x = 703,430.20

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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.