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Finding the Fourth Proportional to 1,437.98, 1,983.60 and 848.46

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Solution

The fourth proportional to 1,437.98, 1,983.60 and 848.46 is: 1,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.98 : 1,983.60 = 848.46 : x
  2. Step 2: Convert to fraction form
    1,437.98/1,983.60 = 848.46/x
  3. Step 3: Cross multiply
    1,437.98x = 1,983.60 × 848.46
  4. Step 4: Simplify right side
    1,437.98x = 1,683,005.26
  5. Step 5: Solve for x
    x = 1,683,005.26/1,437.98
  6. Step 6: Final answer
    x = 1,170.40

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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.