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Finding the Fourth Proportional to 1,802.44, 2,487.13 and 1,056.23

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Solution

The fourth proportional to 1,802.44, 2,487.13 and 1,056.23 is: 1,457.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.44 : 2,487.13 = 1,056.23 : x
  2. Step 2: Convert to fraction form
    1,802.44/2,487.13 = 1,056.23/x
  3. Step 3: Cross multiply
    1,802.44x = 2,487.13 × 1,056.23
  4. Step 4: Simplify right side
    1,802.44x = 2,626,966.24
  5. Step 5: Solve for x
    x = 2,626,966.24/1,802.44
  6. Step 6: Final answer
    x = 1,457.45

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Double scale
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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.