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Finding the Fourth Proportional to 554,962.73, 765,604.33 and 325,403.47

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Solution

The fourth proportional to 554,962.73, 765,604.33 and 325,403.47 is: 448,913.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,962.73 : 765,604.33 = 325,403.47 : x
  2. Step 2: Convert to fraction form
    554,962.73/765,604.33 = 325,403.47/x
  3. Step 3: Cross multiply
    554,962.73x = 765,604.33 × 325,403.47
  4. Step 4: Simplify right side
    554,962.73x = 249,130,302,901.51
  5. Step 5: Solve for x
    x = 249,130,302,901.51/554,962.73
  6. Step 6: Final answer
    x = 448,913.57

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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.