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Finding the Fourth Proportional to 663,004.85, 914,706.69 and 433,693.04

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Solution

The fourth proportional to 663,004.85, 914,706.69 and 433,693.04 is: 598,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,004.85 : 914,706.69 = 433,693.04 : x
  2. Step 2: Convert to fraction form
    663,004.85/914,706.69 = 433,693.04/x
  3. Step 3: Cross multiply
    663,004.85x = 914,706.69 × 433,693.04
  4. Step 4: Simplify right side
    663,004.85x = 396,701,927,381.20
  5. Step 5: Solve for x
    x = 396,701,927,381.20/663,004.85
  6. Step 6: Final answer
    x = 598,339.40

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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.