Home / 1,289,884.80-1,934,831.88-391,334.16

Finding the Fourth Proportional to 1,289,884.80, 1,934,831.88 and 391,334.16

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Solution

The fourth proportional to 1,289,884.80, 1,934,831.88 and 391,334.16 is: 587,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,884.80 : 1,934,831.88 = 391,334.16 : x
  2. Step 2: Convert to fraction form
    1,289,884.80/1,934,831.88 = 391,334.16/x
  3. Step 3: Cross multiply
    1,289,884.80x = 1,934,831.88 × 391,334.16
  4. Step 4: Simplify right side
    1,289,884.80x = 757,165,808,501.02
  5. Step 5: Solve for x
    x = 757,165,808,501.02/1,289,884.80
  6. Step 6: Final answer
    x = 587,002.66

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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.