Home / 686,374.71-947,195.46-376,276.74

Finding the Fourth Proportional to 686,374.71, 947,195.46 and 376,276.74

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Solution

The fourth proportional to 686,374.71, 947,195.46 and 376,276.74 is: 519,261.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,374.71 : 947,195.46 = 376,276.74 : x
  2. Step 2: Convert to fraction form
    686,374.71/947,195.46 = 376,276.74/x
  3. Step 3: Cross multiply
    686,374.71x = 947,195.46 × 376,276.74
  4. Step 4: Simplify right side
    686,374.71x = 356,407,619,831.60
  5. Step 5: Solve for x
    x = 356,407,619,831.60/686,374.71
  6. Step 6: Final answer
    x = 519,261.00

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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.