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Finding the Fourth Proportional to 838,674.88, 1,157,359.88 and 476,095.56

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Solution

The fourth proportional to 838,674.88, 1,157,359.88 and 476,095.56 is: 657,005.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,674.88 : 1,157,359.88 = 476,095.56 : x
  2. Step 2: Convert to fraction form
    838,674.88/1,157,359.88 = 476,095.56/x
  3. Step 3: Cross multiply
    838,674.88x = 1,157,359.88 × 476,095.56
  4. Step 4: Simplify right side
    838,674.88x = 551,013,900,190.13
  5. Step 5: Solve for x
    x = 551,013,900,190.13/838,674.88
  6. Step 6: Final answer
    x = 657,005.37

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Double scale
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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.