Home / 690,548.31-952,986.09-384,624.63

Finding the Fourth Proportional to 690,548.31, 952,986.09 and 384,624.63

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Solution

The fourth proportional to 690,548.31, 952,986.09 and 384,624.63 is: 530,798.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,548.31 : 952,986.09 = 384,624.63 : x
  2. Step 2: Convert to fraction form
    690,548.31/952,986.09 = 384,624.63/x
  3. Step 3: Cross multiply
    690,548.31x = 952,986.09 × 384,624.63
  4. Step 4: Simplify right side
    690,548.31x = 366,541,922,261.40
  5. Step 5: Solve for x
    x = 366,541,922,261.40/690,548.31
  6. Step 6: Final answer
    x = 530,798.38

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Double scale
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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.