Home / 913,451.40-1,260,536.85-505,569.96

Finding the Fourth Proportional to 913,451.40, 1,260,536.85 and 505,569.96

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Solution

The fourth proportional to 913,451.40, 1,260,536.85 and 505,569.96 is: 697,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,451.40 : 1,260,536.85 = 505,569.96 : x
  2. Step 2: Convert to fraction form
    913,451.40/1,260,536.85 = 505,569.96/x
  3. Step 3: Cross multiply
    913,451.40x = 1,260,536.85 × 505,569.96
  4. Step 4: Simplify right side
    913,451.40x = 637,289,564,833.03
  5. Step 5: Solve for x
    x = 637,289,564,833.03/913,451.40
  6. Step 6: Final answer
    x = 697,672.11

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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.