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Finding the Fourth Proportional to 835,354.72, 1,152,790.03 and 453,381.50

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Solution

The fourth proportional to 835,354.72, 1,152,790.03 and 453,381.50 is: 625,666.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,354.72 : 1,152,790.03 = 453,381.50 : x
  2. Step 2: Convert to fraction form
    835,354.72/1,152,790.03 = 453,381.50/x
  3. Step 3: Cross multiply
    835,354.72x = 1,152,790.03 × 453,381.50
  4. Step 4: Simplify right side
    835,354.72x = 522,653,673,884.88
  5. Step 5: Solve for x
    x = 522,653,673,884.88/835,354.72
  6. Step 6: Final answer
    x = 625,666.75

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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.