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Finding the Fourth Proportional to 628,578.60, 941,831.10 and 535,266.60

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Solution

The fourth proportional to 628,578.60, 941,831.10 and 535,266.60 is: 802,017.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,578.60 : 941,831.10 = 535,266.60 : x
  2. Step 2: Convert to fraction form
    628,578.60/941,831.10 = 535,266.60/x
  3. Step 3: Cross multiply
    628,578.60x = 941,831.10 × 535,266.60
  4. Step 4: Simplify right side
    628,578.60x = 504,130,730,671.26
  5. Step 5: Solve for x
    x = 504,130,730,671.26/628,578.60
  6. Step 6: Final answer
    x = 802,017.01

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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.