Home / 825,631.16-1,138,887.12-519,221.53

Finding the Fourth Proportional to 825,631.16, 1,138,887.12 and 519,221.53

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Solution

The fourth proportional to 825,631.16, 1,138,887.12 and 519,221.53 is: 716,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,631.16 : 1,138,887.12 = 519,221.53 : x
  2. Step 2: Convert to fraction form
    825,631.16/1,138,887.12 = 519,221.53/x
  3. Step 3: Cross multiply
    825,631.16x = 1,138,887.12 × 519,221.53
  4. Step 4: Simplify right side
    825,631.16x = 591,334,710,096.48
  5. Step 5: Solve for x
    x = 591,334,710,096.48/825,631.16
  6. Step 6: Final answer
    x = 716,221.40

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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.