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Finding the Fourth Proportional to 572,901.12, 790,698.24 and 477,256.32

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Solution

The fourth proportional to 572,901.12, 790,698.24 and 477,256.32 is: 658,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,901.12 : 790,698.24 = 477,256.32 : x
  2. Step 2: Convert to fraction form
    572,901.12/790,698.24 = 477,256.32/x
  3. Step 3: Cross multiply
    572,901.12x = 790,698.24 × 477,256.32
  4. Step 4: Simplify right side
    572,901.12x = 377,365,732,252.88
  5. Step 5: Solve for x
    x = 377,365,732,252.88/572,901.12
  6. Step 6: Final answer
    x = 658,692.61

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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.