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Finding the Fourth Proportional to 261,544.80, 392,317.20 and 245,798.40

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Solution

The fourth proportional to 261,544.80, 392,317.20 and 245,798.40 is: 368,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,544.80 : 392,317.20 = 245,798.40 : x
  2. Step 2: Convert to fraction form
    261,544.80/392,317.20 = 245,798.40/x
  3. Step 3: Cross multiply
    261,544.80x = 392,317.20 × 245,798.40
  4. Step 4: Simplify right side
    261,544.80x = 96,430,940,052.48
  5. Step 5: Solve for x
    x = 96,430,940,052.48/261,544.80
  6. Step 6: Final answer
    x = 368,697.60

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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.