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Finding the Fourth Proportional to 364,156.51, 502,538.15 and 211,285.74

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Solution

The fourth proportional to 364,156.51, 502,538.15 and 211,285.74 is: 291,575.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,156.51 : 502,538.15 = 211,285.74 : x
  2. Step 2: Convert to fraction form
    364,156.51/502,538.15 = 211,285.74/x
  3. Step 3: Cross multiply
    364,156.51x = 502,538.15 × 211,285.74
  4. Step 4: Simplify right side
    364,156.51x = 106,179,144,900.98
  5. Step 5: Solve for x
    x = 106,179,144,900.98/364,156.51
  6. Step 6: Final answer
    x = 291,575.58

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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.