Home / 564,143.78-778,633.02-382,914.12

Finding the Fourth Proportional to 564,143.78, 778,633.02 and 382,914.12

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Solution

The fourth proportional to 564,143.78, 778,633.02 and 382,914.12 is: 528,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,143.78 : 778,633.02 = 382,914.12 : x
  2. Step 2: Convert to fraction form
    564,143.78/778,633.02 = 382,914.12/x
  3. Step 3: Cross multiply
    564,143.78x = 778,633.02 × 382,914.12
  4. Step 4: Simplify right side
    564,143.78x = 298,149,577,656.24
  5. Step 5: Solve for x
    x = 298,149,577,656.24/564,143.78
  6. Step 6: Final answer
    x = 528,499.27

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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.