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Finding the Fourth Proportional to 702,143.67, 968,957.40 and 379,852.77

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Solution

The fourth proportional to 702,143.67, 968,957.40 and 379,852.77 is: 524,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,143.67 : 968,957.40 = 379,852.77 : x
  2. Step 2: Convert to fraction form
    702,143.67/968,957.40 = 379,852.77/x
  3. Step 3: Cross multiply
    702,143.67x = 968,957.40 × 379,852.77
  4. Step 4: Simplify right side
    702,143.67x = 368,061,152,402.00
  5. Step 5: Solve for x
    x = 368,061,152,402.00/702,143.67
  6. Step 6: Final answer
    x = 524,196.35

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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.