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Finding the Fourth Proportional to 661,692.78, 992,004.52 and 256,675.86

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Solution

The fourth proportional to 661,692.78, 992,004.52 and 256,675.86 is: 384,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,692.78 : 992,004.52 = 256,675.86 : x
  2. Step 2: Convert to fraction form
    661,692.78/992,004.52 = 256,675.86/x
  3. Step 3: Cross multiply
    661,692.78x = 992,004.52 × 256,675.86
  4. Step 4: Simplify right side
    661,692.78x = 254,623,613,294.89
  5. Step 5: Solve for x
    x = 254,623,613,294.89/661,692.78
  6. Step 6: Final answer
    x = 384,806.40

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1.5x scale

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.