Home / 938,542.29-1,407,813.39-432,953.67

Finding the Fourth Proportional to 938,542.29, 1,407,813.39 and 432,953.67

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Solution

The fourth proportional to 938,542.29, 1,407,813.39 and 432,953.67 is: 649,430.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,542.29 : 1,407,813.39 = 432,953.67 : x
  2. Step 2: Convert to fraction form
    938,542.29/1,407,813.39 = 432,953.67/x
  3. Step 3: Cross multiply
    938,542.29x = 1,407,813.39 × 432,953.67
  4. Step 4: Simplify right side
    938,542.29x = 609,517,973,875.64
  5. Step 5: Solve for x
    x = 609,517,973,875.64/938,542.29
  6. Step 6: Final answer
    x = 649,430.48

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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.