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Finding the Fourth Proportional to 668,852.88, 923,783.58 and 440,431.26

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Solution

The fourth proportional to 668,852.88, 923,783.58 and 440,431.26 is: 608,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,852.88 : 923,783.58 = 440,431.26 : x
  2. Step 2: Convert to fraction form
    668,852.88/923,783.58 = 440,431.26/x
  3. Step 3: Cross multiply
    668,852.88x = 923,783.58 × 440,431.26
  4. Step 4: Simplify right side
    668,852.88x = 406,863,166,106.71
  5. Step 5: Solve for x
    x = 406,863,166,106.71/668,852.88
  6. Step 6: Final answer
    x = 608,299.94

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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.