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Finding the Fourth Proportional to 655,293.02, 904,333.47 and 368,831.66

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Solution

The fourth proportional to 655,293.02, 904,333.47 and 368,831.66 is: 509,004.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,293.02 : 904,333.47 = 368,831.66 : x
  2. Step 2: Convert to fraction form
    655,293.02/904,333.47 = 368,831.66/x
  3. Step 3: Cross multiply
    655,293.02x = 904,333.47 × 368,831.66
  4. Step 4: Simplify right side
    655,293.02x = 333,546,814,933.66
  5. Step 5: Solve for x
    x = 333,546,814,933.66/655,293.02
  6. Step 6: Final answer
    x = 509,004.07

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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.