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Finding the Fourth Proportional to 402,602.22, 555,592.23 and 230,522.81

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Solution

The fourth proportional to 402,602.22, 555,592.23 and 230,522.81 is: 318,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,602.22 : 555,592.23 = 230,522.81 : x
  2. Step 2: Convert to fraction form
    402,602.22/555,592.23 = 230,522.81/x
  3. Step 3: Cross multiply
    402,602.22x = 555,592.23 × 230,522.81
  4. Step 4: Simplify right side
    402,602.22x = 128,076,682,073.77
  5. Step 5: Solve for x
    x = 128,076,682,073.77/402,602.22
  6. Step 6: Final answer
    x = 318,122.15

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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.