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Finding the Fourth Proportional to 640,208.52, 882,461.52 and 433,411.74

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Solution

The fourth proportional to 640,208.52, 882,461.52 and 433,411.74 is: 597,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,208.52 : 882,461.52 = 433,411.74 : x
  2. Step 2: Convert to fraction form
    640,208.52/882,461.52 = 433,411.74/x
  3. Step 3: Cross multiply
    640,208.52x = 882,461.52 × 433,411.74
  4. Step 4: Simplify right side
    640,208.52x = 382,469,182,866.25
  5. Step 5: Solve for x
    x = 382,469,182,866.25/640,208.52
  6. Step 6: Final answer
    x = 597,413.45

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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.