Home / 642,613.79-887,210.03-413,568.83

Finding the Fourth Proportional to 642,613.79, 887,210.03 and 413,568.83

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Solution

The fourth proportional to 642,613.79, 887,210.03 and 413,568.83 is: 570,984.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,613.79 : 887,210.03 = 413,568.83 : x
  2. Step 2: Convert to fraction form
    642,613.79/887,210.03 = 413,568.83/x
  3. Step 3: Cross multiply
    642,613.79x = 887,210.03 × 413,568.83
  4. Step 4: Simplify right side
    642,613.79x = 366,922,407,567.47
  5. Step 5: Solve for x
    x = 366,922,407,567.47/642,613.79
  6. Step 6: Final answer
    x = 570,984.34

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Double scale
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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.