Home / 643,011.64-964,320.48-444,607.00

Finding the Fourth Proportional to 643,011.64, 964,320.48 and 444,607.00

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Solution

The fourth proportional to 643,011.64, 964,320.48 and 444,607.00 is: 666,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,011.64 : 964,320.48 = 444,607.00 : x
  2. Step 2: Convert to fraction form
    643,011.64/964,320.48 = 444,607.00/x
  3. Step 3: Cross multiply
    643,011.64x = 964,320.48 × 444,607.00
  4. Step 4: Simplify right side
    643,011.64x = 428,743,630,829.76
  5. Step 5: Solve for x
    x = 428,743,630,829.76/643,011.64
  6. Step 6: Final answer
    x = 666,774.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.