Home / 430,426.80-645,634.86-193,602.24

Finding the Fourth Proportional to 430,426.80, 645,634.86 and 193,602.24

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Solution

The fourth proportional to 430,426.80, 645,634.86 and 193,602.24 is: 290,400.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,426.80 : 645,634.86 = 193,602.24 : x
  2. Step 2: Convert to fraction form
    430,426.80/645,634.86 = 193,602.24/x
  3. Step 3: Cross multiply
    430,426.80x = 645,634.86 × 193,602.24
  4. Step 4: Simplify right side
    430,426.80x = 124,996,355,118.09
  5. Step 5: Solve for x
    x = 124,996,355,118.09/430,426.80
  6. Step 6: Final answer
    x = 290,400.96

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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.