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Finding the Fourth Proportional to 823,043.70, 1,153,048.50 and 823,043.70

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Solution

The fourth proportional to 823,043.70, 1,153,048.50 and 823,043.70 is: 1,153,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,043.70 : 1,153,048.50 = 823,043.70 : x
  2. Step 2: Convert to fraction form
    823,043.70/1,153,048.50 = 823,043.70/x
  3. Step 3: Cross multiply
    823,043.70x = 1,153,048.50 × 823,043.70
  4. Step 4: Simplify right side
    823,043.70x = 949,009,303,719.45
  5. Step 5: Solve for x
    x = 949,009,303,719.45/823,043.70
  6. Step 6: Final answer
    x = 1,153,048.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.