Home / 648,519.75-895,330.80-431,023.36

Finding the Fourth Proportional to 648,519.75, 895,330.80 and 431,023.36

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Solution

The fourth proportional to 648,519.75, 895,330.80 and 431,023.36 is: 595,060.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,519.75 : 895,330.80 = 431,023.36 : x
  2. Step 2: Convert to fraction form
    648,519.75/895,330.80 = 431,023.36/x
  3. Step 3: Cross multiply
    648,519.75x = 895,330.80 × 431,023.36
  4. Step 4: Simplify right side
    648,519.75x = 385,908,489,727.49
  5. Step 5: Solve for x
    x = 385,908,489,727.49/648,519.75
  6. Step 6: Final answer
    x = 595,060.50

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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.