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Finding the Fourth Proportional to 373,666.70, 515,482.43 and 220,602.35

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Solution

The fourth proportional to 373,666.70, 515,482.43 and 220,602.35 is: 304,326.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,666.70 : 515,482.43 = 220,602.35 : x
  2. Step 2: Convert to fraction form
    373,666.70/515,482.43 = 220,602.35/x
  3. Step 3: Cross multiply
    373,666.70x = 515,482.43 × 220,602.35
  4. Step 4: Simplify right side
    373,666.70x = 113,716,632,727.82
  5. Step 5: Solve for x
    x = 113,716,632,727.82/373,666.70
  6. Step 6: Final answer
    x = 304,326.37

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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.