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Finding the Fourth Proportional to 610,929.32, 915,201.97 and 399,927.56

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Solution

The fourth proportional to 610,929.32, 915,201.97 and 399,927.56 is: 599,111.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,929.32 : 915,201.97 = 399,927.56 : x
  2. Step 2: Convert to fraction form
    610,929.32/915,201.97 = 399,927.56/x
  3. Step 3: Cross multiply
    610,929.32x = 915,201.97 × 399,927.56
  4. Step 4: Simplify right side
    610,929.32x = 366,014,492,057.48
  5. Step 5: Solve for x
    x = 366,014,492,057.48/610,929.32
  6. Step 6: Final answer
    x = 599,111.02

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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.