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Finding the Fourth Proportional to 665,714.40, 996,603.30 and 626,785.80

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Solution

The fourth proportional to 665,714.40, 996,603.30 and 626,785.80 is: 938,325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,714.40 : 996,603.30 = 626,785.80 : x
  2. Step 2: Convert to fraction form
    665,714.40/996,603.30 = 626,785.80/x
  3. Step 3: Cross multiply
    665,714.40x = 996,603.30 × 626,785.80
  4. Step 4: Simplify right side
    665,714.40x = 624,656,796,673.14
  5. Step 5: Solve for x
    x = 624,656,796,673.14/665,714.40
  6. Step 6: Final answer
    x = 938,325.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.