Home / 705,659,760.37-973,811,276.66-392,387,248.29

Finding the Fourth Proportional to 705,659,760.37, 973,811,276.66 and 392,387,248.29

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Solution

The fourth proportional to 705,659,760.37, 973,811,276.66 and 392,387,248.29 is: 541,494,851.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,659,760.37 : 973,811,276.66 = 392,387,248.29 : x
  2. Step 2: Convert to fraction form
    705,659,760.37/973,811,276.66 = 392,387,248.29/x
  3. Step 3: Cross multiply
    705,659,760.37x = 973,811,276.66 × 392,387,248.29
  4. Step 4: Simplify right side
    705,659,760.37x = 382,111,127,202,389,312
  5. Step 5: Solve for x
    x = 382,111,127,202,389,312/705,659,760.37
  6. Step 6: Final answer
    x = 541,494,851.57

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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.