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Finding the Fourth Proportional to 654,368.10, 980,823.15 and 254,876.10

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Solution

The fourth proportional to 654,368.10, 980,823.15 and 254,876.10 is: 382,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,368.10 : 980,823.15 = 254,876.10 : x
  2. Step 2: Convert to fraction form
    654,368.10/980,823.15 = 254,876.10/x
  3. Step 3: Cross multiply
    654,368.10x = 980,823.15 × 254,876.10
  4. Step 4: Simplify right side
    654,368.10x = 249,988,379,261.72
  5. Step 5: Solve for x
    x = 249,988,379,261.72/654,368.10
  6. Step 6: Final answer
    x = 382,030.20

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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.