Home / 921,941.28-1,272,186-514,004.76

Finding the Fourth Proportional to 921,941.28, 1,272,186 and 514,004.76

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Solution

The fourth proportional to 921,941.28, 1,272,186 and 514,004.76 is: 709,274.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,941.28 : 1,272,186 = 514,004.76 : x
  2. Step 2: Convert to fraction form
    921,941.28/1,272,186 = 514,004.76/x
  3. Step 3: Cross multiply
    921,941.28x = 1,272,186 × 514,004.76
  4. Step 4: Simplify right side
    921,941.28x = 653,909,659,605.36
  5. Step 5: Solve for x
    x = 653,909,659,605.36/921,941.28
  6. Step 6: Final answer
    x = 709,274.74

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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.