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Finding the Fourth Proportional to 626,785.59, 864,970.35 and 340,308.03

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Solution

The fourth proportional to 626,785.59, 864,970.35 and 340,308.03 is: 469,628.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,785.59 : 864,970.35 = 340,308.03 : x
  2. Step 2: Convert to fraction form
    626,785.59/864,970.35 = 340,308.03/x
  3. Step 3: Cross multiply
    626,785.59x = 864,970.35 × 340,308.03
  4. Step 4: Simplify right side
    626,785.59x = 294,356,355,816.91
  5. Step 5: Solve for x
    x = 294,356,355,816.91/626,785.59
  6. Step 6: Final answer
    x = 469,628.47

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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.