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Finding the Fourth Proportional to 610,886.60, 916,283.76 and 250,959.36

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Solution

The fourth proportional to 610,886.60, 916,283.76 and 250,959.36 is: 376,420.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,886.60 : 916,283.76 = 250,959.36 : x
  2. Step 2: Convert to fraction form
    610,886.60/916,283.76 = 250,959.36/x
  3. Step 3: Cross multiply
    610,886.60x = 916,283.76 × 250,959.36
  4. Step 4: Simplify right side
    610,886.60x = 229,949,985,987.99
  5. Step 5: Solve for x
    x = 229,949,985,987.99/610,886.60
  6. Step 6: Final answer
    x = 376,420.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.