Home / 631,076.40-876,764.51-623,509.59

Finding the Fourth Proportional to 631,076.40, 876,764.51 and 623,509.59

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Solution

The fourth proportional to 631,076.40, 876,764.51 and 623,509.59 is: 866,251.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,076.40 : 876,764.51 = 623,509.59 : x
  2. Step 2: Convert to fraction form
    631,076.40/876,764.51 = 623,509.59/x
  3. Step 3: Cross multiply
    631,076.40x = 876,764.51 × 623,509.59
  4. Step 4: Simplify right side
    631,076.40x = 546,671,077,039.10
  5. Step 5: Solve for x
    x = 546,671,077,039.10/631,076.40
  6. Step 6: Final answer
    x = 866,251.82

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.