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Finding the Fourth Proportional to 666,193.14, 919,088.37 and 424,432.44

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Solution

The fourth proportional to 666,193.14, 919,088.37 and 424,432.44 is: 585,552.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,193.14 : 919,088.37 = 424,432.44 : x
  2. Step 2: Convert to fraction form
    666,193.14/919,088.37 = 424,432.44/x
  3. Step 3: Cross multiply
    666,193.14x = 919,088.37 × 424,432.44
  4. Step 4: Simplify right side
    666,193.14x = 390,090,919,454.72
  5. Step 5: Solve for x
    x = 390,090,919,454.72/666,193.14
  6. Step 6: Final answer
    x = 585,552.29

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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.