Home / 687,968.59-949,364.65-382,064.39

Finding the Fourth Proportional to 687,968.59, 949,364.65 and 382,064.39

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Solution

The fourth proportional to 687,968.59, 949,364.65 and 382,064.39 is: 527,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,968.59 : 949,364.65 = 382,064.39 : x
  2. Step 2: Convert to fraction form
    687,968.59/949,364.65 = 382,064.39/x
  3. Step 3: Cross multiply
    687,968.59x = 949,364.65 × 382,064.39
  4. Step 4: Simplify right side
    687,968.59x = 362,718,425,889.81
  5. Step 5: Solve for x
    x = 362,718,425,889.81/687,968.59
  6. Step 6: Final answer
    x = 527,231.08

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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.