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Finding the Fourth Proportional to 702,076.60, 968,870.42 and 430,145

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Solution

The fourth proportional to 702,076.60, 968,870.42 and 430,145 is: 593,602.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,076.60 : 968,870.42 = 430,145 : x
  2. Step 2: Convert to fraction form
    702,076.60/968,870.42 = 430,145/x
  3. Step 3: Cross multiply
    702,076.60x = 968,870.42 × 430,145
  4. Step 4: Simplify right side
    702,076.60x = 416,754,766,810.90
  5. Step 5: Solve for x
    x = 416,754,766,810.90/702,076.60
  6. Step 6: Final answer
    x = 593,602.99

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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.