Home / 812,225.53-1,120,988.51-467,995.52

Finding the Fourth Proportional to 812,225.53, 1,120,988.51 and 467,995.52

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Solution

The fourth proportional to 812,225.53, 1,120,988.51 and 467,995.52 is: 645,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,225.53 : 1,120,988.51 = 467,995.52 : x
  2. Step 2: Convert to fraction form
    812,225.53/1,120,988.51 = 467,995.52/x
  3. Step 3: Cross multiply
    812,225.53x = 1,120,988.51 × 467,995.52
  4. Step 4: Simplify right side
    812,225.53x = 524,617,605,501.43
  5. Step 5: Solve for x
    x = 524,617,605,501.43/812,225.53
  6. Step 6: Final answer
    x = 645,901.40

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Half scale
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Double scale
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Similar ratio
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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.