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Finding the Fourth Proportional to 366,925.30, 549,707.55 and 208,683.70

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Solution

The fourth proportional to 366,925.30, 549,707.55 and 208,683.70 is: 312,638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,925.30 : 549,707.55 = 208,683.70 : x
  2. Step 2: Convert to fraction form
    366,925.30/549,707.55 = 208,683.70/x
  3. Step 3: Cross multiply
    366,925.30x = 549,707.55 × 208,683.70
  4. Step 4: Simplify right side
    366,925.30x = 114,715,005,451.94
  5. Step 5: Solve for x
    x = 114,715,005,451.94/366,925.30
  6. Step 6: Final answer
    x = 312,638.58

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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.