Home / 838,451.88-1,157,084.40-456,499.68

Finding the Fourth Proportional to 838,451.88, 1,157,084.40 and 456,499.68

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Solution

The fourth proportional to 838,451.88, 1,157,084.40 and 456,499.68 is: 629,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,451.88 : 1,157,084.40 = 456,499.68 : x
  2. Step 2: Convert to fraction form
    838,451.88/1,157,084.40 = 456,499.68/x
  3. Step 3: Cross multiply
    838,451.88x = 1,157,084.40 × 456,499.68
  4. Step 4: Simplify right side
    838,451.88x = 528,208,658,332.99
  5. Step 5: Solve for x
    x = 528,208,658,332.99/838,451.88
  6. Step 6: Final answer
    x = 629,980.89

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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.