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Finding the Fourth Proportional to 866,328.87, 1,195,053.87 and 503,712.66

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Solution

The fourth proportional to 866,328.87, 1,195,053.87 and 503,712.66 is: 694,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,328.87 : 1,195,053.87 = 503,712.66 : x
  2. Step 2: Convert to fraction form
    866,328.87/1,195,053.87 = 503,712.66/x
  3. Step 3: Cross multiply
    866,328.87x = 1,195,053.87 × 503,712.66
  4. Step 4: Simplify right side
    866,328.87x = 601,963,763,700.99
  5. Step 5: Solve for x
    x = 601,963,763,700.99/866,328.87
  6. Step 6: Final answer
    x = 694,844.40

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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.