Home / 627,087.18-865,384.83-340,607.28

Finding the Fourth Proportional to 627,087.18, 865,384.83 and 340,607.28

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Solution

The fourth proportional to 627,087.18, 865,384.83 and 340,607.28 is: 470,040.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,087.18 : 865,384.83 = 340,607.28 : x
  2. Step 2: Convert to fraction form
    627,087.18/865,384.83 = 340,607.28/x
  3. Step 3: Cross multiply
    627,087.18x = 865,384.83 × 340,607.28
  4. Step 4: Simplify right side
    627,087.18x = 294,756,373,099.56
  5. Step 5: Solve for x
    x = 294,756,373,099.56/627,087.18
  6. Step 6: Final answer
    x = 470,040.50

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1.5x scale

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.