Home / 819,499.93-1,128,336.47-696,750.91

Finding the Fourth Proportional to 819,499.93, 1,128,336.47 and 696,750.91

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Solution

The fourth proportional to 819,499.93, 1,128,336.47 and 696,750.91 is: 959,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,499.93 : 1,128,336.47 = 696,750.91 : x
  2. Step 2: Convert to fraction form
    819,499.93/1,128,336.47 = 696,750.91/x
  3. Step 3: Cross multiply
    819,499.93x = 1,128,336.47 × 696,750.91
  4. Step 4: Simplify right side
    819,499.93x = 786,169,462,798.17
  5. Step 5: Solve for x
    x = 786,169,462,798.17/819,499.93
  6. Step 6: Final answer
    x = 959,328.28

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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.