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Finding the Fourth Proportional to 881,628.99, 1,216,781 and 537,664.47

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Solution

The fourth proportional to 881,628.99, 1,216,781 and 537,664.47 is: 742,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,628.99 : 1,216,781 = 537,664.47 : x
  2. Step 2: Convert to fraction form
    881,628.99/1,216,781 = 537,664.47/x
  3. Step 3: Cross multiply
    881,628.99x = 1,216,781 × 537,664.47
  4. Step 4: Simplify right side
    881,628.99x = 654,219,911,471.07
  5. Step 5: Solve for x
    x = 654,219,911,471.07/881,628.99
  6. Step 6: Final answer
    x = 742,058.08

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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.