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Finding the Fourth Proportional to 609,877.80, 914,816.70 and 397,301.40

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Solution

The fourth proportional to 609,877.80, 914,816.70 and 397,301.40 is: 595,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,877.80 : 914,816.70 = 397,301.40 : x
  2. Step 2: Convert to fraction form
    609,877.80/914,816.70 = 397,301.40/x
  3. Step 3: Cross multiply
    609,877.80x = 914,816.70 × 397,301.40
  4. Step 4: Simplify right side
    609,877.80x = 363,457,955,653.38
  5. Step 5: Solve for x
    x = 363,457,955,653.38/609,877.80
  6. Step 6: Final answer
    x = 595,952.10

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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.