Home / 459,111.55-633,540.90-287,106.70

Finding the Fourth Proportional to 459,111.55, 633,540.90 and 287,106.70

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Solution

The fourth proportional to 459,111.55, 633,540.90 and 287,106.70 is: 396,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,111.55 : 633,540.90 = 287,106.70 : x
  2. Step 2: Convert to fraction form
    459,111.55/633,540.90 = 287,106.70/x
  3. Step 3: Cross multiply
    459,111.55x = 633,540.90 × 287,106.70
  4. Step 4: Simplify right side
    459,111.55x = 181,893,837,114.03
  5. Step 5: Solve for x
    x = 181,893,837,114.03/459,111.55
  6. Step 6: Final answer
    x = 396,186.58

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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.