Home / 642,045.12-962,840.40-186,541.60

Finding the Fourth Proportional to 642,045.12, 962,840.40 and 186,541.60

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Solution

The fourth proportional to 642,045.12, 962,840.40 and 186,541.60 is: 279,746.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,045.12 : 962,840.40 = 186,541.60 : x
  2. Step 2: Convert to fraction form
    642,045.12/962,840.40 = 186,541.60/x
  3. Step 3: Cross multiply
    642,045.12x = 962,840.40 × 186,541.60
  4. Step 4: Simplify right side
    642,045.12x = 179,609,788,760.64
  5. Step 5: Solve for x
    x = 179,609,788,760.64/642,045.12
  6. Step 6: Final answer
    x = 279,746.37

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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.