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Finding the Fourth Proportional to 572,830.40, 858,662.40 and 336,051.20

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Solution

The fourth proportional to 572,830.40, 858,662.40 and 336,051.20 is: 503,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,830.40 : 858,662.40 = 336,051.20 : x
  2. Step 2: Convert to fraction form
    572,830.40/858,662.40 = 336,051.20/x
  3. Step 3: Cross multiply
    572,830.40x = 858,662.40 × 336,051.20
  4. Step 4: Simplify right side
    572,830.40x = 288,554,529,914.88
  5. Step 5: Solve for x
    x = 288,554,529,914.88/572,830.40
  6. Step 6: Final answer
    x = 503,734.67

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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.