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Finding the Fourth Proportional to 573,063.93, 790,812.58 and 318,408.57

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Solution

The fourth proportional to 573,063.93, 790,812.58 and 318,408.57 is: 439,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,063.93 : 790,812.58 = 318,408.57 : x
  2. Step 2: Convert to fraction form
    573,063.93/790,812.58 = 318,408.57/x
  3. Step 3: Cross multiply
    573,063.93x = 790,812.58 × 318,408.57
  4. Step 4: Simplify right side
    573,063.93x = 251,801,502,735.81
  5. Step 5: Solve for x
    x = 251,801,502,735.81/573,063.93
  6. Step 6: Final answer
    x = 439,395.13

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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.