Home / 926,868.74-1,278,973.14-518,913.86

Finding the Fourth Proportional to 926,868.74, 1,278,973.14 and 518,913.86

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Solution

The fourth proportional to 926,868.74, 1,278,973.14 and 518,913.86 is: 716,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,868.74 : 1,278,973.14 = 518,913.86 : x
  2. Step 2: Convert to fraction form
    926,868.74/1,278,973.14 = 518,913.86/x
  3. Step 3: Cross multiply
    926,868.74x = 1,278,973.14 × 518,913.86
  4. Step 4: Simplify right side
    926,868.74x = 663,676,888,913.72
  5. Step 5: Solve for x
    x = 663,676,888,913.72/926,868.74
  6. Step 6: Final answer
    x = 716,041.94

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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.