Home / 809,413.30-1,214,460.15-434,998.90

Finding the Fourth Proportional to 809,413.30, 1,214,460.15 and 434,998.90

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Solution

The fourth proportional to 809,413.30, 1,214,460.15 and 434,998.90 is: 652,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,413.30 : 1,214,460.15 = 434,998.90 : x
  2. Step 2: Convert to fraction form
    809,413.30/1,214,460.15 = 434,998.90/x
  3. Step 3: Cross multiply
    809,413.30x = 1,214,460.15 × 434,998.90
  4. Step 4: Simplify right side
    809,413.30x = 528,288,829,343.84
  5. Step 5: Solve for x
    x = 528,288,829,343.84/809,413.30
  6. Step 6: Final answer
    x = 652,681.18

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Double scale
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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.