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Finding the Fourth Proportional to 978,058.40, 1,465,705.20 and 602,967.20

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Solution

The fourth proportional to 978,058.40, 1,465,705.20 and 602,967.20 is: 903,598.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,058.40 : 1,465,705.20 = 602,967.20 : x
  2. Step 2: Convert to fraction form
    978,058.40/1,465,705.20 = 602,967.20/x
  3. Step 3: Cross multiply
    978,058.40x = 1,465,705.20 × 602,967.20
  4. Step 4: Simplify right side
    978,058.40x = 883,772,160,469.44
  5. Step 5: Solve for x
    x = 883,772,160,469.44/978,058.40
  6. Step 6: Final answer
    x = 903,598.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.