Home / 638,984.15-881,796.93-348,595.73

Finding the Fourth Proportional to 638,984.15, 881,796.93 and 348,595.73

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Solution

The fourth proportional to 638,984.15, 881,796.93 and 348,595.73 is: 481,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,984.15 : 881,796.93 = 348,595.73 : x
  2. Step 2: Convert to fraction form
    638,984.15/881,796.93 = 348,595.73/x
  3. Step 3: Cross multiply
    638,984.15x = 881,796.93 × 348,595.73
  4. Step 4: Simplify right side
    638,984.15x = 307,390,642,115.63
  5. Step 5: Solve for x
    x = 307,390,642,115.63/638,984.15
  6. Step 6: Final answer
    x = 481,061.45

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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.