Home / 938,831.07-1,295,587.22-509,111.08

Finding the Fourth Proportional to 938,831.07, 1,295,587.22 and 509,111.08

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Solution

The fourth proportional to 938,831.07, 1,295,587.22 and 509,111.08 is: 702,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,831.07 : 1,295,587.22 = 509,111.08 : x
  2. Step 2: Convert to fraction form
    938,831.07/1,295,587.22 = 509,111.08/x
  3. Step 3: Cross multiply
    938,831.07x = 1,295,587.22 × 509,111.08
  4. Step 4: Simplify right side
    938,831.07x = 659,597,808,808.40
  5. Step 5: Solve for x
    x = 659,597,808,808.40/938,831.07
  6. Step 6: Final answer
    x = 702,573.48

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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.