Home / 525,961.40-788,942.10-357,999.80

Finding the Fourth Proportional to 525,961.40, 788,942.10 and 357,999.80

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Solution

The fourth proportional to 525,961.40, 788,942.10 and 357,999.80 is: 536,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,961.40 : 788,942.10 = 357,999.80 : x
  2. Step 2: Convert to fraction form
    525,961.40/788,942.10 = 357,999.80/x
  3. Step 3: Cross multiply
    525,961.40x = 788,942.10 × 357,999.80
  4. Step 4: Simplify right side
    525,961.40x = 282,441,114,011.58
  5. Step 5: Solve for x
    x = 282,441,114,011.58/525,961.40
  6. Step 6: Final answer
    x = 536,999.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.