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Finding the Fourth Proportional to 641,714.40, 883,256.40 and 604,972.80

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Solution

The fourth proportional to 641,714.40, 883,256.40 and 604,972.80 is: 832,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,714.40 : 883,256.40 = 604,972.80 : x
  2. Step 2: Convert to fraction form
    641,714.40/883,256.40 = 604,972.80/x
  3. Step 3: Cross multiply
    641,714.40x = 883,256.40 × 604,972.80
  4. Step 4: Simplify right side
    641,714.40x = 534,346,097,425.92
  5. Step 5: Solve for x
    x = 534,346,097,425.92/641,714.40
  6. Step 6: Final answer
    x = 832,685.22

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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.