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Finding the Fourth Proportional to 460,976.90, 636,101.55 and 257,008.67

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Solution

The fourth proportional to 460,976.90, 636,101.55 and 257,008.67 is: 354,646.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,976.90 : 636,101.55 = 257,008.67 : x
  2. Step 2: Convert to fraction form
    460,976.90/636,101.55 = 257,008.67/x
  3. Step 3: Cross multiply
    460,976.90x = 636,101.55 × 257,008.67
  4. Step 4: Simplify right side
    460,976.90x = 163,483,610,169.93
  5. Step 5: Solve for x
    x = 163,483,610,169.93/460,976.90
  6. Step 6: Final answer
    x = 354,646.00

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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.