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Finding the Fourth Proportional to 675,104.63, 931,606.11 and 369,123.89

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Solution

The fourth proportional to 675,104.63, 931,606.11 and 369,123.89 is: 509,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,104.63 : 931,606.11 = 369,123.89 : x
  2. Step 2: Convert to fraction form
    675,104.63/931,606.11 = 369,123.89/x
  3. Step 3: Cross multiply
    675,104.63x = 931,606.11 × 369,123.89
  4. Step 4: Simplify right side
    675,104.63x = 343,878,066,612.94
  5. Step 5: Solve for x
    x = 343,878,066,612.94/675,104.63
  6. Step 6: Final answer
    x = 509,370.04

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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.