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Finding the Fourth Proportional to 589,505.70, 883,675.35 and 289,740.90

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Solution

The fourth proportional to 589,505.70, 883,675.35 and 289,740.90 is: 434,324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,505.70 : 883,675.35 = 289,740.90 : x
  2. Step 2: Convert to fraction form
    589,505.70/883,675.35 = 289,740.90/x
  3. Step 3: Cross multiply
    589,505.70x = 883,675.35 × 289,740.90
  4. Step 4: Simplify right side
    589,505.70x = 256,036,891,216.82
  5. Step 5: Solve for x
    x = 256,036,891,216.82/589,505.70
  6. Step 6: Final answer
    x = 434,324.71

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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.