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Finding the Fourth Proportional to 519,782.39, 779,218.06 and 249,776.05

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Solution

The fourth proportional to 519,782.39, 779,218.06 and 249,776.05 is: 374,445.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,782.39 : 779,218.06 = 249,776.05 : x
  2. Step 2: Convert to fraction form
    519,782.39/779,218.06 = 249,776.05/x
  3. Step 3: Cross multiply
    519,782.39x = 779,218.06 × 249,776.05
  4. Step 4: Simplify right side
    519,782.39x = 194,630,009,115.46
  5. Step 5: Solve for x
    x = 194,630,009,115.46/519,782.39
  6. Step 6: Final answer
    x = 374,445.18

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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.