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Finding the Fourth Proportional to 533,870.40, 736,420.88 and 352,582.64

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Solution

The fourth proportional to 533,870.40, 736,420.88 and 352,582.64 is: 486,352.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,870.40 : 736,420.88 = 352,582.64 : x
  2. Step 2: Convert to fraction form
    533,870.40/736,420.88 = 352,582.64/x
  3. Step 3: Cross multiply
    533,870.40x = 736,420.88 × 352,582.64
  4. Step 4: Simplify right side
    533,870.40x = 259,649,218,021.52
  5. Step 5: Solve for x
    x = 259,649,218,021.52/533,870.40
  6. Step 6: Final answer
    x = 486,352.53

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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.