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Finding the Fourth Proportional to 850,421.61, 1,173,585 and 468,447.48

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Solution

The fourth proportional to 850,421.61, 1,173,585 and 468,447.48 is: 646,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,421.61 : 1,173,585 = 468,447.48 : x
  2. Step 2: Convert to fraction form
    850,421.61/1,173,585 = 468,447.48/x
  3. Step 3: Cross multiply
    850,421.61x = 1,173,585 × 468,447.48
  4. Step 4: Simplify right side
    850,421.61x = 549,762,935,815.80
  5. Step 5: Solve for x
    x = 549,762,935,815.80/850,421.61
  6. Step 6: Final answer
    x = 646,459.27

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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.