Home / 418,333.04-577,451.96-257,403.92

Finding the Fourth Proportional to 418,333.04, 577,451.96 and 257,403.92

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Solution

The fourth proportional to 418,333.04, 577,451.96 and 257,403.92 is: 355,311.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,333.04 : 577,451.96 = 257,403.92 : x
  2. Step 2: Convert to fraction form
    418,333.04/577,451.96 = 257,403.92/x
  3. Step 3: Cross multiply
    418,333.04x = 577,451.96 × 257,403.92
  4. Step 4: Simplify right side
    418,333.04x = 148,638,398,115.68
  5. Step 5: Solve for x
    x = 148,638,398,115.68/418,333.04
  6. Step 6: Final answer
    x = 355,311.16

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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.