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Finding the Fourth Proportional to 423,336.15, 634,841.54 and 153,384.96

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Solution

The fourth proportional to 423,336.15, 634,841.54 and 153,384.96 is: 230,018.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,336.15 : 634,841.54 = 153,384.96 : x
  2. Step 2: Convert to fraction form
    423,336.15/634,841.54 = 153,384.96/x
  3. Step 3: Cross multiply
    423,336.15x = 634,841.54 × 153,384.96
  4. Step 4: Simplify right side
    423,336.15x = 97,375,143,452.31
  5. Step 5: Solve for x
    x = 97,375,143,452.31/423,336.15
  6. Step 6: Final answer
    x = 230,018.49

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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.