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Finding the Fourth Proportional to 549,415.47, 822,646.68 and 348,648.87

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Solution

The fourth proportional to 549,415.47, 822,646.68 and 348,648.87 is: 522,036.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,415.47 : 822,646.68 = 348,648.87 : x
  2. Step 2: Convert to fraction form
    549,415.47/822,646.68 = 348,648.87/x
  3. Step 3: Cross multiply
    549,415.47x = 822,646.68 × 348,648.87
  4. Step 4: Simplify right side
    549,415.47x = 286,814,835,391.25
  5. Step 5: Solve for x
    x = 286,814,835,391.25/549,415.47
  6. Step 6: Final answer
    x = 522,036.33

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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.