Home / 531,943.14-734,079.74-290,225.78

Finding the Fourth Proportional to 531,943.14, 734,079.74 and 290,225.78

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Solution

The fourth proportional to 531,943.14, 734,079.74 and 290,225.78 is: 400,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,943.14 : 734,079.74 = 290,225.78 : x
  2. Step 2: Convert to fraction form
    531,943.14/734,079.74 = 290,225.78/x
  3. Step 3: Cross multiply
    531,943.14x = 734,079.74 × 290,225.78
  4. Step 4: Simplify right side
    531,943.14x = 213,048,865,123.70
  5. Step 5: Solve for x
    x = 213,048,865,123.70/531,943.14
  6. Step 6: Final answer
    x = 400,510.60

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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.