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Finding the Fourth Proportional to 265,430.09, 366,280.90 and 144,570.80

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Solution

The fourth proportional to 265,430.09, 366,280.90 and 144,570.80 is: 199,500.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,430.09 : 366,280.90 = 144,570.80 : x
  2. Step 2: Convert to fraction form
    265,430.09/366,280.90 = 144,570.80/x
  3. Step 3: Cross multiply
    265,430.09x = 366,280.90 × 144,570.80
  4. Step 4: Simplify right side
    265,430.09x = 52,953,520,544.89
  5. Step 5: Solve for x
    x = 52,953,520,544.89/265,430.09
  6. Step 6: Final answer
    x = 199,500.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.