Home / 838,653.73-1,256,816.76-382,129.29

Finding the Fourth Proportional to 838,653.73, 1,256,816.76 and 382,129.29

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Solution

The fourth proportional to 838,653.73, 1,256,816.76 and 382,129.29 is: 572,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,653.73 : 1,256,816.76 = 382,129.29 : x
  2. Step 2: Convert to fraction form
    838,653.73/1,256,816.76 = 382,129.29/x
  3. Step 3: Cross multiply
    838,653.73x = 1,256,816.76 × 382,129.29
  4. Step 4: Simplify right side
    838,653.73x = 480,266,496,158.90
  5. Step 5: Solve for x
    x = 480,266,496,158.90/838,653.73
  6. Step 6: Final answer
    x = 572,663.64

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1.5x scale

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.