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Finding the Fourth Proportional to 675,282.30, 931,754.79 and 373,417.98

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Solution

The fourth proportional to 675,282.30, 931,754.79 and 373,417.98 is: 515,242.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,282.30 : 931,754.79 = 373,417.98 : x
  2. Step 2: Convert to fraction form
    675,282.30/931,754.79 = 373,417.98/x
  3. Step 3: Cross multiply
    675,282.30x = 931,754.79 × 373,417.98
  4. Step 4: Simplify right side
    675,282.30x = 347,933,991,537.12
  5. Step 5: Solve for x
    x = 347,933,991,537.12/675,282.30
  6. Step 6: Final answer
    x = 515,242.28

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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.