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Finding the Fourth Proportional to 502,176.96, 692,985.60 and 275,808.96

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Solution

The fourth proportional to 502,176.96, 692,985.60 and 275,808.96 is: 380,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,176.96 : 692,985.60 = 275,808.96 : x
  2. Step 2: Convert to fraction form
    502,176.96/692,985.60 = 275,808.96/x
  3. Step 3: Cross multiply
    502,176.96x = 692,985.60 × 275,808.96
  4. Step 4: Simplify right side
    502,176.96x = 191,131,637,630.98
  5. Step 5: Solve for x
    x = 191,131,637,630.98/502,176.96
  6. Step 6: Final answer
    x = 380,606.15

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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.