Home / 518,089.16-714,914.20-288,623.05

Finding the Fourth Proportional to 518,089.16, 714,914.20 and 288,623.05

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Solution

The fourth proportional to 518,089.16, 714,914.20 and 288,623.05 is: 398,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,089.16 : 714,914.20 = 288,623.05 : x
  2. Step 2: Convert to fraction form
    518,089.16/714,914.20 = 288,623.05/x
  3. Step 3: Cross multiply
    518,089.16x = 714,914.20 × 288,623.05
  4. Step 4: Simplify right side
    518,089.16x = 206,340,715,465.80
  5. Step 5: Solve for x
    x = 206,340,715,465.80/518,089.16
  6. Step 6: Final answer
    x = 398,272.60

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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.