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Finding the Fourth Proportional to 616,448.96, 850,692.92 and 340,805.63

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Solution

The fourth proportional to 616,448.96, 850,692.92 and 340,805.63 is: 470,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,448.96 : 850,692.92 = 340,805.63 : x
  2. Step 2: Convert to fraction form
    616,448.96/850,692.92 = 340,805.63/x
  3. Step 3: Cross multiply
    616,448.96x = 850,692.92 × 340,805.63
  4. Step 4: Simplify right side
    616,448.96x = 289,920,939,515.89
  5. Step 5: Solve for x
    x = 289,920,939,515.89/616,448.96
  6. Step 6: Final answer
    x = 470,308.10

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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.