Home / 864,950.40-1,296,259.20-579,830.40

Finding the Fourth Proportional to 864,950.40, 1,296,259.20 and 579,830.40

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Solution

The fourth proportional to 864,950.40, 1,296,259.20 and 579,830.40 is: 868,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,950.40 : 1,296,259.20 = 579,830.40 : x
  2. Step 2: Convert to fraction form
    864,950.40/1,296,259.20 = 579,830.40/x
  3. Step 3: Cross multiply
    864,950.40x = 1,296,259.20 × 579,830.40
  4. Step 4: Simplify right side
    864,950.40x = 751,610,490,439.68
  5. Step 5: Solve for x
    x = 751,610,490,439.68/864,950.40
  6. Step 6: Final answer
    x = 868,963.69

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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.