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Finding the Fourth Proportional to 626,697.19, 864,852.56 and 340,217.27

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Solution

The fourth proportional to 626,697.19, 864,852.56 and 340,217.27 is: 469,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,697.19 : 864,852.56 = 340,217.27 : x
  2. Step 2: Convert to fraction form
    626,697.19/864,852.56 = 340,217.27/x
  3. Step 3: Cross multiply
    626,697.19x = 864,852.56 × 340,217.27
  4. Step 4: Simplify right side
    626,697.19x = 294,237,776,915.71
  5. Step 5: Solve for x
    x = 294,237,776,915.71/626,697.19
  6. Step 6: Final answer
    x = 469,505.50

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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.