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Finding the Fourth Proportional to 418,636.63, 577,700.94 and 237,360.75

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Solution

The fourth proportional to 418,636.63, 577,700.94 and 237,360.75 is: 327,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,636.63 : 577,700.94 = 237,360.75 : x
  2. Step 2: Convert to fraction form
    418,636.63/577,700.94 = 237,360.75/x
  3. Step 3: Cross multiply
    418,636.63x = 577,700.94 × 237,360.75
  4. Step 4: Simplify right side
    418,636.63x = 137,123,528,394.11
  5. Step 5: Solve for x
    x = 137,123,528,394.11/418,636.63
  6. Step 6: Final answer
    x = 327,547.85

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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.