Home / 692,440.16-955,399.12-405,904.88

Finding the Fourth Proportional to 692,440.16, 955,399.12 and 405,904.88

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Solution

The fourth proportional to 692,440.16, 955,399.12 and 405,904.88 is: 560,050.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,440.16 : 955,399.12 = 405,904.88 : x
  2. Step 2: Convert to fraction form
    692,440.16/955,399.12 = 405,904.88/x
  3. Step 3: Cross multiply
    692,440.16x = 955,399.12 × 405,904.88
  4. Step 4: Simplify right side
    692,440.16x = 387,801,165,155.71
  5. Step 5: Solve for x
    x = 387,801,165,155.71/692,440.16
  6. Step 6: Final answer
    x = 560,050.08

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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.