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Finding the Fourth Proportional to 353,567.58, 530,351.37 and 291,106.86

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Solution

The fourth proportional to 353,567.58, 530,351.37 and 291,106.86 is: 436,660.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,567.58 : 530,351.37 = 291,106.86 : x
  2. Step 2: Convert to fraction form
    353,567.58/530,351.37 = 291,106.86/x
  3. Step 3: Cross multiply
    353,567.58x = 530,351.37 × 291,106.86
  4. Step 4: Simplify right side
    353,567.58x = 154,388,922,017.40
  5. Step 5: Solve for x
    x = 154,388,922,017.40/353,567.58
  6. Step 6: Final answer
    x = 436,660.29

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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.