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Finding the Fourth Proportional to 616,076.80, 924,460.80 and 261,030.40

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Solution

The fourth proportional to 616,076.80, 924,460.80 and 261,030.40 is: 391,692.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,076.80 : 924,460.80 = 261,030.40 : x
  2. Step 2: Convert to fraction form
    616,076.80/924,460.80 = 261,030.40/x
  3. Step 3: Cross multiply
    616,076.80x = 924,460.80 × 261,030.40
  4. Step 4: Simplify right side
    616,076.80x = 241,312,372,408.32
  5. Step 5: Solve for x
    x = 241,312,372,408.32/616,076.80
  6. Step 6: Final answer
    x = 391,692.03

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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.