Home / 1,108,938.80-1,663,403.34-434,543.60

Finding the Fourth Proportional to 1,108,938.80, 1,663,403.34 and 434,543.60

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Solution

The fourth proportional to 1,108,938.80, 1,663,403.34 and 434,543.60 is: 651,813.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,938.80 : 1,663,403.34 = 434,543.60 : x
  2. Step 2: Convert to fraction form
    1,108,938.80/1,663,403.34 = 434,543.60/x
  3. Step 3: Cross multiply
    1,108,938.80x = 1,663,403.34 × 434,543.60
  4. Step 4: Simplify right side
    1,108,938.80x = 722,821,275,615.62
  5. Step 5: Solve for x
    x = 722,821,275,615.62/1,108,938.80
  6. Step 6: Final answer
    x = 651,813.50

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Double scale
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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.