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Finding the Fourth Proportional to 1,672,904.04, 2,308,601.86 and 947,890.15

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Solution

The fourth proportional to 1,672,904.04, 2,308,601.86 and 947,890.15 is: 1,308,085.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672,904.04 : 2,308,601.86 = 947,890.15 : x
  2. Step 2: Convert to fraction form
    1,672,904.04/2,308,601.86 = 947,890.15/x
  3. Step 3: Cross multiply
    1,672,904.04x = 2,308,601.86 × 947,890.15
  4. Step 4: Simplify right side
    1,672,904.04x = 2,188,300,955,224.45
  5. Step 5: Solve for x
    x = 2,188,300,955,224.45/1,672,904.04
  6. Step 6: Final answer
    x = 1,308,085.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.