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Finding the Fourth Proportional to 426,055.62, 639,413.91 and 160,058.10

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Solution

The fourth proportional to 426,055.62, 639,413.91 and 160,058.10 is: 240,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,055.62 : 639,413.91 = 160,058.10 : x
  2. Step 2: Convert to fraction form
    426,055.62/639,413.91 = 160,058.10/x
  3. Step 3: Cross multiply
    426,055.62x = 639,413.91 × 160,058.10
  4. Step 4: Simplify right side
    426,055.62x = 102,343,375,548.17
  5. Step 5: Solve for x
    x = 102,343,375,548.17/426,055.62
  6. Step 6: Final answer
    x = 240,211.30

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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.