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Finding the Fourth Proportional to 855,684.30, 1,180,797.52 and 468,424.82

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Solution

The fourth proportional to 855,684.30, 1,180,797.52 and 468,424.82 is: 646,400.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,684.30 : 1,180,797.52 = 468,424.82 : x
  2. Step 2: Convert to fraction form
    855,684.30/1,180,797.52 = 468,424.82/x
  3. Step 3: Cross multiply
    855,684.30x = 1,180,797.52 × 468,424.82
  4. Step 4: Simplify right side
    855,684.30x = 553,114,865,762.45
  5. Step 5: Solve for x
    x = 553,114,865,762.45/855,684.30
  6. Step 6: Final answer
    x = 646,400.62

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1.5x scale

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.