Home / 642,001.80-965,076.30-456,299.40

Finding the Fourth Proportional to 642,001.80, 965,076.30 and 456,299.40

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Solution

The fourth proportional to 642,001.80, 965,076.30 and 456,299.40 is: 685,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,001.80 : 965,076.30 = 456,299.40 : x
  2. Step 2: Convert to fraction form
    642,001.80/965,076.30 = 456,299.40/x
  3. Step 3: Cross multiply
    642,001.80x = 965,076.30 × 456,299.40
  4. Step 4: Simplify right side
    642,001.80x = 440,363,736,644.22
  5. Step 5: Solve for x
    x = 440,363,736,644.22/642,001.80
  6. Step 6: Final answer
    x = 685,922.90

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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.