Home / 638,958.68-881,733.28-366,835.08

Finding the Fourth Proportional to 638,958.68, 881,733.28 and 366,835.08

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Solution

The fourth proportional to 638,958.68, 881,733.28 and 366,835.08 is: 506,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,958.68 : 881,733.28 = 366,835.08 : x
  2. Step 2: Convert to fraction form
    638,958.68/881,733.28 = 366,835.08/x
  3. Step 3: Cross multiply
    638,958.68x = 881,733.28 × 366,835.08
  4. Step 4: Simplify right side
    638,958.68x = 323,450,698,307.46
  5. Step 5: Solve for x
    x = 323,450,698,307.46/638,958.68
  6. Step 6: Final answer
    x = 506,215.36

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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.