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Finding the Fourth Proportional to 655,347.76, 904,466.88 and 368,924.16

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Solution

The fourth proportional to 655,347.76, 904,466.88 and 368,924.16 is: 509,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,347.76 : 904,466.88 = 368,924.16 : x
  2. Step 2: Convert to fraction form
    655,347.76/904,466.88 = 368,924.16/x
  3. Step 3: Cross multiply
    655,347.76x = 904,466.88 × 368,924.16
  4. Step 4: Simplify right side
    655,347.76x = 333,679,683,951.82
  5. Step 5: Solve for x
    x = 333,679,683,951.82/655,347.76
  6. Step 6: Final answer
    x = 509,164.30

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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.