Home / 638,838.35-881,595.06-366,923.78

Finding the Fourth Proportional to 638,838.35, 881,595.06 and 366,923.78

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Solution

The fourth proportional to 638,838.35, 881,595.06 and 366,923.78 is: 506,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,838.35 : 881,595.06 = 366,923.78 : x
  2. Step 2: Convert to fraction form
    638,838.35/881,595.06 = 366,923.78/x
  3. Step 3: Cross multiply
    638,838.35x = 881,595.06 × 366,923.78
  4. Step 4: Simplify right side
    638,838.35x = 323,478,191,844.53
  5. Step 5: Solve for x
    x = 323,478,191,844.53/638,838.35
  6. Step 6: Final answer
    x = 506,353.75

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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.