Home / 645,257.45-965,620.80-530,064.51

Finding the Fourth Proportional to 645,257.45, 965,620.80 and 530,064.51

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Solution

The fourth proportional to 645,257.45, 965,620.80 and 530,064.51 is: 793,235.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,257.45 : 965,620.80 = 530,064.51 : x
  2. Step 2: Convert to fraction form
    645,257.45/965,620.80 = 530,064.51/x
  3. Step 3: Cross multiply
    645,257.45x = 965,620.80 × 530,064.51
  4. Step 4: Simplify right side
    645,257.45x = 511,841,316,197.81
  5. Step 5: Solve for x
    x = 511,841,316,197.81/645,257.45
  6. Step 6: Final answer
    x = 793,235.82

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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.