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Finding the Fourth Proportional to 676,647.54, 933,729.84 and 370,723.50

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Solution

The fourth proportional to 676,647.54, 933,729.84 and 370,723.50 is: 511,574.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,647.54 : 933,729.84 = 370,723.50 : x
  2. Step 2: Convert to fraction form
    676,647.54/933,729.84 = 370,723.50/x
  3. Step 3: Cross multiply
    676,647.54x = 933,729.84 × 370,723.50
  4. Step 4: Simplify right side
    676,647.54x = 346,155,594,339.24
  5. Step 5: Solve for x
    x = 346,155,594,339.24/676,647.54
  6. Step 6: Final answer
    x = 511,574.45

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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.