Home / 676,857.15-933,944.45-386,336.07

Finding the Fourth Proportional to 676,857.15, 933,944.45 and 386,336.07

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Solution

The fourth proportional to 676,857.15, 933,944.45 and 386,336.07 is: 533,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,857.15 : 933,944.45 = 386,336.07 : x
  2. Step 2: Convert to fraction form
    676,857.15/933,944.45 = 386,336.07/x
  3. Step 3: Cross multiply
    676,857.15x = 933,944.45 × 386,336.07
  4. Step 4: Simplify right side
    676,857.15x = 360,816,426,479.63
  5. Step 5: Solve for x
    x = 360,816,426,479.63/676,857.15
  6. Step 6: Final answer
    x = 533,076.18

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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.