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Finding the Fourth Proportional to 573,374, 860,242.44 and 257,858.48

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Solution

The fourth proportional to 573,374, 860,242.44 and 257,858.48 is: 386,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,374 : 860,242.44 = 257,858.48 : x
  2. Step 2: Convert to fraction form
    573,374/860,242.44 = 257,858.48/x
  3. Step 3: Cross multiply
    573,374x = 860,242.44 × 257,858.48
  4. Step 4: Simplify right side
    573,374x = 221,820,808,009.89
  5. Step 5: Solve for x
    x = 221,820,808,009.89/573,374
  6. Step 6: Final answer
    x = 386,869.32

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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.