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Finding the Fourth Proportional to 634,505.73, 875,602.89 and 348,023.31

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Solution

The fourth proportional to 634,505.73, 875,602.89 and 348,023.31 is: 480,263.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,505.73 : 875,602.89 = 348,023.31 : x
  2. Step 2: Convert to fraction form
    634,505.73/875,602.89 = 348,023.31/x
  3. Step 3: Cross multiply
    634,505.73x = 875,602.89 × 348,023.31
  4. Step 4: Simplify right side
    634,505.73x = 304,730,216,023.37
  5. Step 5: Solve for x
    x = 304,730,216,023.37/634,505.73
  6. Step 6: Final answer
    x = 480,263.93

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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.