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Finding the Fourth Proportional to 532,943.15, 735,461.57 and 287,927.87

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Solution

The fourth proportional to 532,943.15, 735,461.57 and 287,927.87 is: 397,340.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,943.15 : 735,461.57 = 287,927.87 : x
  2. Step 2: Convert to fraction form
    532,943.15/735,461.57 = 287,927.87/x
  3. Step 3: Cross multiply
    532,943.15x = 735,461.57 × 287,927.87
  4. Step 4: Simplify right side
    532,943.15x = 211,759,880,359.47
  5. Step 5: Solve for x
    x = 211,759,880,359.47/532,943.15
  6. Step 6: Final answer
    x = 397,340.47

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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.