Home / 676,669.71-933,685.52-386,148.63

Finding the Fourth Proportional to 676,669.71, 933,685.52 and 386,148.63

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Solution

The fourth proportional to 676,669.71, 933,685.52 and 386,148.63 is: 532,817.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,669.71 : 933,685.52 = 386,148.63 : x
  2. Step 2: Convert to fraction form
    676,669.71/933,685.52 = 386,148.63/x
  3. Step 3: Cross multiply
    676,669.71x = 933,685.52 × 386,148.63
  4. Step 4: Simplify right side
    676,669.71x = 360,541,384,398.84
  5. Step 5: Solve for x
    x = 360,541,384,398.84/676,669.71
  6. Step 6: Final answer
    x = 532,817.38

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Double scale
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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.