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Finding the Fourth Proportional to 530,326.74, 732,101.13 and 339,450.78

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Solution

The fourth proportional to 530,326.74, 732,101.13 and 339,450.78 is: 468,602.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,326.74 : 732,101.13 = 339,450.78 : x
  2. Step 2: Convert to fraction form
    530,326.74/732,101.13 = 339,450.78/x
  3. Step 3: Cross multiply
    530,326.74x = 732,101.13 × 339,450.78
  4. Step 4: Simplify right side
    530,326.74x = 248,512,299,617.38
  5. Step 5: Solve for x
    x = 248,512,299,617.38/530,326.74
  6. Step 6: Final answer
    x = 468,602.24

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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.