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Finding the Fourth Proportional to 548,535.95, 756,913.28 and 316,038.94

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Solution

The fourth proportional to 548,535.95, 756,913.28 and 316,038.94 is: 436,095.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,535.95 : 756,913.28 = 316,038.94 : x
  2. Step 2: Convert to fraction form
    548,535.95/756,913.28 = 316,038.94/x
  3. Step 3: Cross multiply
    548,535.95x = 756,913.28 × 316,038.94
  4. Step 4: Simplify right side
    548,535.95x = 239,214,067,210.65
  5. Step 5: Solve for x
    x = 239,214,067,210.65/548,535.95
  6. Step 6: Final answer
    x = 436,095.52

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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.