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Finding the Fourth Proportional to 265,655.70, 398,483.55 and 265,655.70

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Solution

The fourth proportional to 265,655.70, 398,483.55 and 265,655.70 is: 398,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,655.70 : 398,483.55 = 265,655.70 : x
  2. Step 2: Convert to fraction form
    265,655.70/398,483.55 = 265,655.70/x
  3. Step 3: Cross multiply
    265,655.70x = 398,483.55 × 265,655.70
  4. Step 4: Simplify right side
    265,655.70x = 105,859,426,413.74
  5. Step 5: Solve for x
    x = 105,859,426,413.74/265,655.70
  6. Step 6: Final answer
    x = 398,483.55

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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.