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Finding the Fourth Proportional to 716,777.40, 989,039.48 and 410,794.86

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Solution

The fourth proportional to 716,777.40, 989,039.48 and 410,794.86 is: 566,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,777.40 : 989,039.48 = 410,794.86 : x
  2. Step 2: Convert to fraction form
    716,777.40/989,039.48 = 410,794.86/x
  3. Step 3: Cross multiply
    716,777.40x = 989,039.48 × 410,794.86
  4. Step 4: Simplify right side
    716,777.40x = 406,292,334,721.07
  5. Step 5: Solve for x
    x = 406,292,334,721.07/716,777.40
  6. Step 6: Final answer
    x = 566,831.95

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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.