Home / 518,024.12-714,894.93-288,581.36

Finding the Fourth Proportional to 518,024.12, 714,894.93 and 288,581.36

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Solution

The fourth proportional to 518,024.12, 714,894.93 and 288,581.36 is: 398,254.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,024.12 : 714,894.93 = 288,581.36 : x
  2. Step 2: Convert to fraction form
    518,024.12/714,894.93 = 288,581.36/x
  3. Step 3: Cross multiply
    518,024.12x = 714,894.93 × 288,581.36
  4. Step 4: Simplify right side
    518,024.12x = 206,305,347,582.03
  5. Step 5: Solve for x
    x = 206,305,347,582.03/518,024.12
  6. Step 6: Final answer
    x = 398,254.33

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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.