Home / 938,541.79-1,407,812.64-432,953.17

Finding the Fourth Proportional to 938,541.79, 1,407,812.64 and 432,953.17

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Solution

The fourth proportional to 938,541.79, 1,407,812.64 and 432,953.17 is: 649,429.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,541.79 : 1,407,812.64 = 432,953.17 : x
  2. Step 2: Convert to fraction form
    938,541.79/1,407,812.64 = 432,953.17/x
  3. Step 3: Cross multiply
    938,541.79x = 1,407,812.64 × 432,953.17
  4. Step 4: Simplify right side
    938,541.79x = 609,516,945,254.07
  5. Step 5: Solve for x
    x = 609,516,945,254.07/938,541.79
  6. Step 6: Final answer
    x = 649,429.73

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.