Home / 1,354,876.59-1,869,812.47-781,953.67

Finding the Fourth Proportional to 1,354,876.59, 1,869,812.47 and 781,953.67

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Solution

The fourth proportional to 1,354,876.59, 1,869,812.47 and 781,953.67 is: 1,079,143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,876.59 : 1,869,812.47 = 781,953.67 : x
  2. Step 2: Convert to fraction form
    1,354,876.59/1,869,812.47 = 781,953.67/x
  3. Step 3: Cross multiply
    1,354,876.59x = 1,869,812.47 × 781,953.67
  4. Step 4: Simplify right side
    1,354,876.59x = 1,462,106,723,128.27
  5. Step 5: Solve for x
    x = 1,462,106,723,128.27/1,354,876.59
  6. Step 6: Final answer
    x = 1,079,143.84

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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.