Home / 691,788.60-954,583.36-385,793.28

Finding the Fourth Proportional to 691,788.60, 954,583.36 and 385,793.28

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Solution

The fourth proportional to 691,788.60, 954,583.36 and 385,793.28 is: 532,347.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,788.60 : 954,583.36 = 385,793.28 : x
  2. Step 2: Convert to fraction form
    691,788.60/954,583.36 = 385,793.28/x
  3. Step 3: Cross multiply
    691,788.60x = 954,583.36 × 385,793.28
  4. Step 4: Simplify right side
    691,788.60x = 368,271,845,487.82
  5. Step 5: Solve for x
    x = 368,271,845,487.82/691,788.60
  6. Step 6: Final answer
    x = 532,347.38

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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.