Home / 938,828.10-1,295,583.12-509,108.11

Finding the Fourth Proportional to 938,828.10, 1,295,583.12 and 509,108.11

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Solution

The fourth proportional to 938,828.10, 1,295,583.12 and 509,108.11 is: 702,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,828.10 : 1,295,583.12 = 509,108.11 : x
  2. Step 2: Convert to fraction form
    938,828.10/1,295,583.12 = 509,108.11/x
  3. Step 3: Cross multiply
    938,828.10x = 1,295,583.12 × 509,108.11
  4. Step 4: Simplify right side
    938,828.10x = 659,591,871,828.15
  5. Step 5: Solve for x
    x = 659,591,871,828.15/938,828.10
  6. Step 6: Final answer
    x = 702,569.38

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Double scale
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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.