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Finding the Fourth Proportional to 366,811.40, 549,525.90 and 188,712.20

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Solution

The fourth proportional to 366,811.40, 549,525.90 and 188,712.20 is: 282,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,811.40 : 549,525.90 = 188,712.20 : x
  2. Step 2: Convert to fraction form
    366,811.40/549,525.90 = 188,712.20/x
  3. Step 3: Cross multiply
    366,811.40x = 549,525.90 × 188,712.20
  4. Step 4: Simplify right side
    366,811.40x = 103,702,241,545.98
  5. Step 5: Solve for x
    x = 103,702,241,545.98/366,811.40
  6. Step 6: Final answer
    x = 282,712.70

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1.5x scale

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.