Home / 639,244,920.30-958,867,380.45-294,871,152.30

Finding the Fourth Proportional to 639,244,920.30, 958,867,380.45 and 294,871,152.30

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Solution

The fourth proportional to 639,244,920.30, 958,867,380.45 and 294,871,152.30 is: 442,306,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,244,920.30 : 958,867,380.45 = 294,871,152.30 : x
  2. Step 2: Convert to fraction form
    639,244,920.30/958,867,380.45 = 294,871,152.30/x
  3. Step 3: Cross multiply
    639,244,920.30x = 958,867,380.45 × 294,871,152.30
  4. Step 4: Simplify right side
    639,244,920.30x = 282,742,329,376,174,016
  5. Step 5: Solve for x
    x = 282,742,329,376,174,016/639,244,920.30
  6. Step 6: Final answer
    x = 442,306,728.45

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Double scale
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Similar ratio
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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.