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Finding the Fourth Proportional to 887,113, 1,224,246.18 and 484,730.92

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Solution

The fourth proportional to 887,113, 1,224,246.18 and 484,730.92 is: 668,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,113 : 1,224,246.18 = 484,730.92 : x
  2. Step 2: Convert to fraction form
    887,113/1,224,246.18 = 484,730.92/x
  3. Step 3: Cross multiply
    887,113x = 1,224,246.18 × 484,730.92
  4. Step 4: Simplify right side
    887,113x = 593,429,977,137.89
  5. Step 5: Solve for x
    x = 593,429,977,137.89/887,113
  6. Step 6: Final answer
    x = 668,945.19

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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.