Home / 869,571.18-1,200,008.39-487,598.13

Finding the Fourth Proportional to 869,571.18, 1,200,008.39 and 487,598.13

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Solution

The fourth proportional to 869,571.18, 1,200,008.39 and 487,598.13 is: 672,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,571.18 : 1,200,008.39 = 487,598.13 : x
  2. Step 2: Convert to fraction form
    869,571.18/1,200,008.39 = 487,598.13/x
  3. Step 3: Cross multiply
    869,571.18x = 1,200,008.39 × 487,598.13
  4. Step 4: Simplify right side
    869,571.18x = 585,121,844,510.32
  5. Step 5: Solve for x
    x = 585,121,844,510.32/869,571.18
  6. Step 6: Final answer
    x = 672,885.51

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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.