Home / 317,840.33-438,436.28-190,442.10

Finding the Fourth Proportional to 317,840.33, 438,436.28 and 190,442.10

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Solution

The fourth proportional to 317,840.33, 438,436.28 and 190,442.10 is: 262,700.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,840.33 : 438,436.28 = 190,442.10 : x
  2. Step 2: Convert to fraction form
    317,840.33/438,436.28 = 190,442.10/x
  3. Step 3: Cross multiply
    317,840.33x = 438,436.28 × 190,442.10
  4. Step 4: Simplify right side
    317,840.33x = 83,496,724,927.18
  5. Step 5: Solve for x
    x = 83,496,724,927.18/317,840.33
  6. Step 6: Final answer
    x = 262,700.23

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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.