Home / 917,186.05-1,376,314.89-384,662.49

Finding the Fourth Proportional to 917,186.05, 1,376,314.89 and 384,662.49

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Solution

The fourth proportional to 917,186.05, 1,376,314.89 and 384,662.49 is: 577,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,186.05 : 1,376,314.89 = 384,662.49 : x
  2. Step 2: Convert to fraction form
    917,186.05/1,376,314.89 = 384,662.49/x
  3. Step 3: Cross multiply
    917,186.05x = 1,376,314.89 × 384,662.49
  4. Step 4: Simplify right side
    917,186.05x = 529,416,712,611.48
  5. Step 5: Solve for x
    x = 529,416,712,611.48/917,186.05
  6. Step 6: Final answer
    x = 577,218.45

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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.