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Finding the Fourth Proportional to 545,650.97, 752,998.01 and 316,341.50

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Solution

The fourth proportional to 545,650.97, 752,998.01 and 316,341.50 is: 436,551.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,650.97 : 752,998.01 = 316,341.50 : x
  2. Step 2: Convert to fraction form
    545,650.97/752,998.01 = 316,341.50/x
  3. Step 3: Cross multiply
    545,650.97x = 752,998.01 × 316,341.50
  4. Step 4: Simplify right side
    545,650.97x = 238,204,514,633.72
  5. Step 5: Solve for x
    x = 238,204,514,633.72/545,650.97
  6. Step 6: Final answer
    x = 436,551.07

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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.