Home / 418,128.45-577,063.32-234,384.60

Finding the Fourth Proportional to 418,128.45, 577,063.32 and 234,384.60

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Solution

The fourth proportional to 418,128.45, 577,063.32 and 234,384.60 is: 323,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,128.45 : 577,063.32 = 234,384.60 : x
  2. Step 2: Convert to fraction form
    418,128.45/577,063.32 = 234,384.60/x
  3. Step 3: Cross multiply
    418,128.45x = 577,063.32 × 234,384.60
  4. Step 4: Simplify right side
    418,128.45x = 135,254,755,432.87
  5. Step 5: Solve for x
    x = 135,254,755,432.87/418,128.45
  6. Step 6: Final answer
    x = 323,476.57

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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.