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Finding the Fourth Proportional to 634,644.48, 875,794.37 and 348,162.06

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Solution

The fourth proportional to 634,644.48, 875,794.37 and 348,162.06 is: 480,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,644.48 : 875,794.37 = 348,162.06 : x
  2. Step 2: Convert to fraction form
    634,644.48/875,794.37 = 348,162.06/x
  3. Step 3: Cross multiply
    634,644.48x = 875,794.37 × 348,162.06
  4. Step 4: Simplify right side
    634,644.48x = 304,918,370,254.79
  5. Step 5: Solve for x
    x = 304,918,370,254.79/634,644.48
  6. Step 6: Final answer
    x = 480,455.40

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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.