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Finding the Fourth Proportional to 850,347.69, 1,173,479.70 and 468,374.47

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Solution

The fourth proportional to 850,347.69, 1,173,479.70 and 468,374.47 is: 646,356.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,347.69 : 1,173,479.70 = 468,374.47 : x
  2. Step 2: Convert to fraction form
    850,347.69/1,173,479.70 = 468,374.47/x
  3. Step 3: Cross multiply
    850,347.69x = 1,173,479.70 × 468,374.47
  4. Step 4: Simplify right side
    850,347.69x = 549,627,932,543.26
  5. Step 5: Solve for x
    x = 549,627,932,543.26/850,347.69
  6. Step 6: Final answer
    x = 646,356.71

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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.