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Finding the Fourth Proportional to 581,401.80, 802,553.70 and 339,762.88

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Solution

The fourth proportional to 581,401.80, 802,553.70 and 339,762.88 is: 469,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,401.80 : 802,553.70 = 339,762.88 : x
  2. Step 2: Convert to fraction form
    581,401.80/802,553.70 = 339,762.88/x
  3. Step 3: Cross multiply
    581,401.80x = 802,553.70 × 339,762.88
  4. Step 4: Simplify right side
    581,401.80x = 272,677,956,466.66
  5. Step 5: Solve for x
    x = 272,677,956,466.66/581,401.80
  6. Step 6: Final answer
    x = 469,000.88

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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.