Home / 838,830.45-1,157,544.78-476,206.74

Finding the Fourth Proportional to 838,830.45, 1,157,544.78 and 476,206.74

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Solution

The fourth proportional to 838,830.45, 1,157,544.78 and 476,206.74 is: 657,141.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,830.45 : 1,157,544.78 = 476,206.74 : x
  2. Step 2: Convert to fraction form
    838,830.45/1,157,544.78 = 476,206.74/x
  3. Step 3: Cross multiply
    838,830.45x = 1,157,544.78 × 476,206.74
  4. Step 4: Simplify right side
    838,830.45x = 551,230,626,087.82
  5. Step 5: Solve for x
    x = 551,230,626,087.82/838,830.45
  6. Step 6: Final answer
    x = 657,141.89

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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.