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Finding the Fourth Proportional to 605,556.70, 907,557.45 and 464,616.70

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Solution

The fourth proportional to 605,556.70, 907,557.45 and 464,616.70 is: 696,328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,556.70 : 907,557.45 = 464,616.70 : x
  2. Step 2: Convert to fraction form
    605,556.70/907,557.45 = 464,616.70/x
  3. Step 3: Cross multiply
    605,556.70x = 907,557.45 × 464,616.70
  4. Step 4: Simplify right side
    605,556.70x = 421,666,347,479.42
  5. Step 5: Solve for x
    x = 421,666,347,479.42/605,556.70
  6. Step 6: Final answer
    x = 696,328.43

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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.