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Finding the Fourth Proportional to 677,436.48, 934,560 and 435,673.44

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Solution

The fourth proportional to 677,436.48, 934,560 and 435,673.44 is: 601,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,436.48 : 934,560 = 435,673.44 : x
  2. Step 2: Convert to fraction form
    677,436.48/934,560 = 435,673.44/x
  3. Step 3: Cross multiply
    677,436.48x = 934,560 × 435,673.44
  4. Step 4: Simplify right side
    677,436.48x = 407,162,970,086.40
  5. Step 5: Solve for x
    x = 407,162,970,086.40/677,436.48
  6. Step 6: Final answer
    x = 601,034.90

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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.