Home / 631,240.56-870,834.44-376,444.13

Finding the Fourth Proportional to 631,240.56, 870,834.44 and 376,444.13

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Solution

The fourth proportional to 631,240.56, 870,834.44 and 376,444.13 is: 519,327.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,240.56 : 870,834.44 = 376,444.13 : x
  2. Step 2: Convert to fraction form
    631,240.56/870,834.44 = 376,444.13/x
  3. Step 3: Cross multiply
    631,240.56x = 870,834.44 × 376,444.13
  4. Step 4: Simplify right side
    631,240.56x = 327,820,509,726.78
  5. Step 5: Solve for x
    x = 327,820,509,726.78/631,240.56
  6. Step 6: Final answer
    x = 519,327.39

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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.