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Finding the Fourth Proportional to 995,718.80, 1,493,405.40 and 364,307.60

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Solution

The fourth proportional to 995,718.80, 1,493,405.40 and 364,307.60 is: 546,398.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,718.80 : 1,493,405.40 = 364,307.60 : x
  2. Step 2: Convert to fraction form
    995,718.80/1,493,405.40 = 364,307.60/x
  3. Step 3: Cross multiply
    995,718.80x = 1,493,405.40 × 364,307.60
  4. Step 4: Simplify right side
    995,718.80x = 544,058,937,101.04
  5. Step 5: Solve for x
    x = 544,058,937,101.04/995,718.80
  6. Step 6: Final answer
    x = 546,398.18

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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.