Home / 852,985.35-1,177,120.47-547,060.78

Finding the Fourth Proportional to 852,985.35, 1,177,120.47 and 547,060.78

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Solution

The fourth proportional to 852,985.35, 1,177,120.47 and 547,060.78 is: 754,944.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,985.35 : 1,177,120.47 = 547,060.78 : x
  2. Step 2: Convert to fraction form
    852,985.35/1,177,120.47 = 547,060.78/x
  3. Step 3: Cross multiply
    852,985.35x = 1,177,120.47 × 547,060.78
  4. Step 4: Simplify right side
    852,985.35x = 643,956,439,736.86
  5. Step 5: Solve for x
    x = 643,956,439,736.86/852,985.35
  6. Step 6: Final answer
    x = 754,944.32

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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.