Home / 318,384.07-477,392.94-190,428.17

Finding the Fourth Proportional to 318,384.07, 477,392.94 and 190,428.17

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Solution

The fourth proportional to 318,384.07, 477,392.94 and 190,428.17 is: 285,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,384.07 : 477,392.94 = 190,428.17 : x
  2. Step 2: Convert to fraction form
    318,384.07/477,392.94 = 190,428.17/x
  3. Step 3: Cross multiply
    318,384.07x = 477,392.94 × 190,428.17
  4. Step 4: Simplify right side
    318,384.07x = 90,909,061,548.16
  5. Step 5: Solve for x
    x = 90,909,061,548.16/318,384.07
  6. Step 6: Final answer
    x = 285,532.70

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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.