Home / 668,865.80-923,801.40-440,444.24

Finding the Fourth Proportional to 668,865.80, 923,801.40 and 440,444.24

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Solution

The fourth proportional to 668,865.80, 923,801.40 and 440,444.24 is: 608,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,865.80 : 923,801.40 = 440,444.24 : x
  2. Step 2: Convert to fraction form
    668,865.80/923,801.40 = 440,444.24/x
  3. Step 3: Cross multiply
    668,865.80x = 923,801.40 × 440,444.24
  4. Step 4: Simplify right side
    668,865.80x = 406,883,005,533.94
  5. Step 5: Solve for x
    x = 406,883,005,533.94/668,865.80
  6. Step 6: Final answer
    x = 608,317.85

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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.