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Finding the Fourth Proportional to 366,312.10, 549,468.15 and 260,023.90

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Solution

The fourth proportional to 366,312.10, 549,468.15 and 260,023.90 is: 390,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,312.10 : 549,468.15 = 260,023.90 : x
  2. Step 2: Convert to fraction form
    366,312.10/549,468.15 = 260,023.90/x
  3. Step 3: Cross multiply
    366,312.10x = 549,468.15 × 260,023.90
  4. Step 4: Simplify right side
    366,312.10x = 142,874,851,288.79
  5. Step 5: Solve for x
    x = 142,874,851,288.79/366,312.10
  6. Step 6: Final answer
    x = 390,035.85

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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.