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Finding the Fourth Proportional to 978,168.04, 1,350,111.78 and 596,405.16

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Solution

The fourth proportional to 978,168.04, 1,350,111.78 and 596,405.16 is: 823,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,168.04 : 1,350,111.78 = 596,405.16 : x
  2. Step 2: Convert to fraction form
    978,168.04/1,350,111.78 = 596,405.16/x
  3. Step 3: Cross multiply
    978,168.04x = 1,350,111.78 × 596,405.16
  4. Step 4: Simplify right side
    978,168.04x = 805,213,632,168.79
  5. Step 5: Solve for x
    x = 805,213,632,168.79/978,168.04
  6. Step 6: Final answer
    x = 823,185.38

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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.