Home / 653,561.16-902,221.59-436,131.68

Finding the Fourth Proportional to 653,561.16, 902,221.59 and 436,131.68

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Solution

The fourth proportional to 653,561.16, 902,221.59 and 436,131.68 is: 602,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,561.16 : 902,221.59 = 436,131.68 : x
  2. Step 2: Convert to fraction form
    653,561.16/902,221.59 = 436,131.68/x
  3. Step 3: Cross multiply
    653,561.16x = 902,221.59 × 436,131.68
  4. Step 4: Simplify right side
    653,561.16x = 393,487,413,267.86
  5. Step 5: Solve for x
    x = 393,487,413,267.86/653,561.16
  6. Step 6: Final answer
    x = 602,066.70

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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.