Home / 783,503.47-1,081,458.98-461,400.39

Finding the Fourth Proportional to 783,503.47, 1,081,458.98 and 461,400.39

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Solution

The fourth proportional to 783,503.47, 1,081,458.98 and 461,400.39 is: 636,864.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,503.47 : 1,081,458.98 = 461,400.39 : x
  2. Step 2: Convert to fraction form
    783,503.47/1,081,458.98 = 461,400.39/x
  3. Step 3: Cross multiply
    783,503.47x = 1,081,458.98 × 461,400.39
  4. Step 4: Simplify right side
    783,503.47x = 498,985,594,564.25
  5. Step 5: Solve for x
    x = 498,985,594,564.25/783,503.47
  6. Step 6: Final answer
    x = 636,864.57

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Double scale
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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.