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Finding the Fourth Proportional to 572,416.40, 858,624.60 and 336,220.40

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Solution

The fourth proportional to 572,416.40, 858,624.60 and 336,220.40 is: 504,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,416.40 : 858,624.60 = 336,220.40 : x
  2. Step 2: Convert to fraction form
    572,416.40/858,624.60 = 336,220.40/x
  3. Step 3: Cross multiply
    572,416.40x = 858,624.60 × 336,220.40
  4. Step 4: Simplify right side
    572,416.40x = 288,687,106,461.84
  5. Step 5: Solve for x
    x = 288,687,106,461.84/572,416.40
  6. Step 6: Final answer
    x = 504,330.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.