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Finding the Fourth Proportional to 475,153.88, 655,463.80 and 293,807.84

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Solution

The fourth proportional to 475,153.88, 655,463.80 and 293,807.84 is: 405,301.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,153.88 : 655,463.80 = 293,807.84 : x
  2. Step 2: Convert to fraction form
    475,153.88/655,463.80 = 293,807.84/x
  3. Step 3: Cross multiply
    475,153.88x = 655,463.80 × 293,807.84
  4. Step 4: Simplify right side
    475,153.88x = 192,580,403,276.19
  5. Step 5: Solve for x
    x = 192,580,403,276.19/475,153.88
  6. Step 6: Final answer
    x = 405,301.13

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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.