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Finding the Fourth Proportional to 528,897.69, 729,698.55 and 338,021.19

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Solution

The fourth proportional to 528,897.69, 729,698.55 and 338,021.19 is: 466,354.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,897.69 : 729,698.55 = 338,021.19 : x
  2. Step 2: Convert to fraction form
    528,897.69/729,698.55 = 338,021.19/x
  3. Step 3: Cross multiply
    528,897.69x = 729,698.55 × 338,021.19
  4. Step 4: Simplify right side
    528,897.69x = 246,653,572,212.28
  5. Step 5: Solve for x
    x = 246,653,572,212.28/528,897.69
  6. Step 6: Final answer
    x = 466,354.04

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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.