Home / 639,256.16-958,988.28-239,928.32

Finding the Fourth Proportional to 639,256.16, 958,988.28 and 239,928.32

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Solution

The fourth proportional to 639,256.16, 958,988.28 and 239,928.32 is: 359,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,256.16 : 958,988.28 = 239,928.32 : x
  2. Step 2: Convert to fraction form
    639,256.16/958,988.28 = 239,928.32/x
  3. Step 3: Cross multiply
    639,256.16x = 958,988.28 × 239,928.32
  4. Step 4: Simplify right side
    639,256.16x = 230,088,446,920.09
  5. Step 5: Solve for x
    x = 230,088,446,920.09/639,256.16
  6. Step 6: Final answer
    x = 359,931.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.