Home / 1,227,603.60-1,841,405.40-386,413.20

Finding the Fourth Proportional to 1,227,603.60, 1,841,405.40 and 386,413.20

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Solution

The fourth proportional to 1,227,603.60, 1,841,405.40 and 386,413.20 is: 579,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,603.60 : 1,841,405.40 = 386,413.20 : x
  2. Step 2: Convert to fraction form
    1,227,603.60/1,841,405.40 = 386,413.20/x
  3. Step 3: Cross multiply
    1,227,603.60x = 1,841,405.40 × 386,413.20
  4. Step 4: Simplify right side
    1,227,603.60x = 711,543,353,111.28
  5. Step 5: Solve for x
    x = 711,543,353,111.28/1,227,603.60
  6. Step 6: Final answer
    x = 579,619.80

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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.