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Finding the Fourth Proportional to 554,774.90, 765,611.07 and 325,300.28

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Solution

The fourth proportional to 554,774.90, 765,611.07 and 325,300.28 is: 448,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,774.90 : 765,611.07 = 325,300.28 : x
  2. Step 2: Convert to fraction form
    554,774.90/765,611.07 = 325,300.28/x
  3. Step 3: Cross multiply
    554,774.90x = 765,611.07 × 325,300.28
  4. Step 4: Simplify right side
    554,774.90x = 249,053,495,442.10
  5. Step 5: Solve for x
    x = 249,053,495,442.10/554,774.90
  6. Step 6: Final answer
    x = 448,927.12

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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.