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Finding the Fourth Proportional to 292,275.90, 438,413.85 and 292,275.90

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Solution

The fourth proportional to 292,275.90, 438,413.85 and 292,275.90 is: 438,413.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,275.90 : 438,413.85 = 292,275.90 : x
  2. Step 2: Convert to fraction form
    292,275.90/438,413.85 = 292,275.90/x
  3. Step 3: Cross multiply
    292,275.90x = 438,413.85 × 292,275.90
  4. Step 4: Simplify right side
    292,275.90x = 128,137,802,581.22
  5. Step 5: Solve for x
    x = 128,137,802,581.22/292,275.90
  6. Step 6: Final answer
    x = 438,413.85

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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.