Home / 781,582.24-1,077,407.72-611,521.12

Finding the Fourth Proportional to 781,582.24, 1,077,407.72 and 611,521.12

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Solution

The fourth proportional to 781,582.24, 1,077,407.72 and 611,521.12 is: 842,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,582.24 : 1,077,407.72 = 611,521.12 : x
  2. Step 2: Convert to fraction form
    781,582.24/1,077,407.72 = 611,521.12/x
  3. Step 3: Cross multiply
    781,582.24x = 1,077,407.72 × 611,521.12
  4. Step 4: Simplify right side
    781,582.24x = 658,857,575,631.05
  5. Step 5: Solve for x
    x = 658,857,575,631.05/781,582.24
  6. Step 6: Final answer
    x = 842,979.21

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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.