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Finding the Fourth Proportional to 659,607.40, 989,411.10 and 593,122.60

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Solution

The fourth proportional to 659,607.40, 989,411.10 and 593,122.60 is: 889,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,607.40 : 989,411.10 = 593,122.60 : x
  2. Step 2: Convert to fraction form
    659,607.40/989,411.10 = 593,122.60/x
  3. Step 3: Cross multiply
    659,607.40x = 989,411.10 × 593,122.60
  4. Step 4: Simplify right side
    659,607.40x = 586,842,084,100.86
  5. Step 5: Solve for x
    x = 586,842,084,100.86/659,607.40
  6. Step 6: Final answer
    x = 889,683.90

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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.