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Finding the Fourth Proportional to 610,390.13, 915,585.20 and 236,413.13

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Solution

The fourth proportional to 610,390.13, 915,585.20 and 236,413.13 is: 354,619.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,390.13 : 915,585.20 = 236,413.13 : x
  2. Step 2: Convert to fraction form
    610,390.13/915,585.20 = 236,413.13/x
  3. Step 3: Cross multiply
    610,390.13x = 915,585.20 × 236,413.13
  4. Step 4: Simplify right side
    610,390.13x = 216,456,357,153.68
  5. Step 5: Solve for x
    x = 216,456,357,153.68/610,390.13
  6. Step 6: Final answer
    x = 354,619.69

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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.