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Finding the Fourth Proportional to 705,227.32, 973,206.12 and 399,295.18

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Solution

The fourth proportional to 705,227.32, 973,206.12 and 399,295.18 is: 551,023.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,227.32 : 973,206.12 = 399,295.18 : x
  2. Step 2: Convert to fraction form
    705,227.32/973,206.12 = 399,295.18/x
  3. Step 3: Cross multiply
    705,227.32x = 973,206.12 × 399,295.18
  4. Step 4: Simplify right side
    705,227.32x = 388,596,512,862.50
  5. Step 5: Solve for x
    x = 388,596,512,862.50/705,227.32
  6. Step 6: Final answer
    x = 551,023.06

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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.