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Finding the Fourth Proportional to 475,133.60, 655,684.54 and 260,281.40

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Solution

The fourth proportional to 475,133.60, 655,684.54 and 260,281.40 is: 359,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,133.60 : 655,684.54 = 260,281.40 : x
  2. Step 2: Convert to fraction form
    475,133.60/655,684.54 = 260,281.40/x
  3. Step 3: Cross multiply
    475,133.60x = 655,684.54 × 260,281.40
  4. Step 4: Simplify right side
    475,133.60x = 170,662,490,029.56
  5. Step 5: Solve for x
    x = 170,662,490,029.56/475,133.60
  6. Step 6: Final answer
    x = 359,188.43

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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.