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Finding the Fourth Proportional to 573,153.48, 790,706.40 and 357,919.92

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Solution

The fourth proportional to 573,153.48, 790,706.40 and 357,919.92 is: 493,776.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,153.48 : 790,706.40 = 357,919.92 : x
  2. Step 2: Convert to fraction form
    573,153.48/790,706.40 = 357,919.92/x
  3. Step 3: Cross multiply
    573,153.48x = 790,706.40 × 357,919.92
  4. Step 4: Simplify right side
    573,153.48x = 283,009,571,431.49
  5. Step 5: Solve for x
    x = 283,009,571,431.49/573,153.48
  6. Step 6: Final answer
    x = 493,776.24

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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.