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Finding the Fourth Proportional to 623,675.30, 860,893.11 and 369,025.88

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Solution

The fourth proportional to 623,675.30, 860,893.11 and 369,025.88 is: 509,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,675.30 : 860,893.11 = 369,025.88 : x
  2. Step 2: Convert to fraction form
    623,675.30/860,893.11 = 369,025.88/x
  3. Step 3: Cross multiply
    623,675.30x = 860,893.11 × 369,025.88
  4. Step 4: Simplify right side
    623,675.30x = 317,691,833,199.22
  5. Step 5: Solve for x
    x = 317,691,833,199.22/623,675.30
  6. Step 6: Final answer
    x = 509,386.59

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1.5x scale

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.