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Finding the Fourth Proportional to 805,884,335.20, 1,208,826,502.80 and 741,387,080.80

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Solution

The fourth proportional to 805,884,335.20, 1,208,826,502.80 and 741,387,080.80 is: 1,112,080,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,884,335.20 : 1,208,826,502.80 = 741,387,080.80 : x
  2. Step 2: Convert to fraction form
    805,884,335.20/1,208,826,502.80 = 741,387,080.80/x
  3. Step 3: Cross multiply
    805,884,335.20x = 1,208,826,502.80 × 741,387,080.80
  4. Step 4: Simplify right side
    805,884,335.20x = 896,208,352,104,564,992
  5. Step 5: Solve for x
    x = 896,208,352,104,564,992/805,884,335.20
  6. Step 6: Final answer
    x = 1,112,080,621.20

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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.