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Finding the Fourth Proportional to 472,413,014.40, 708,619,521.60 and 443,715,200.40

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Solution

The fourth proportional to 472,413,014.40, 708,619,521.60 and 443,715,200.40 is: 665,572,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,413,014.40 : 708,619,521.60 = 443,715,200.40 : x
  2. Step 2: Convert to fraction form
    472,413,014.40/708,619,521.60 = 443,715,200.40/x
  3. Step 3: Cross multiply
    472,413,014.40x = 708,619,521.60 × 443,715,200.40
  4. Step 4: Simplify right side
    472,413,014.40x = 314,425,253,034,096,128
  5. Step 5: Solve for x
    x = 314,425,253,034,096,128/472,413,014.40
  6. Step 6: Final answer
    x = 665,572,800.60

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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.