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Finding the Fourth Proportional to 612,948.10, 917,672.55 and 612,948.10

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Solution

The fourth proportional to 612,948.10, 917,672.55 and 612,948.10 is: 917,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,948.10 : 917,672.55 = 612,948.10 : x
  2. Step 2: Convert to fraction form
    612,948.10/917,672.55 = 612,948.10/x
  3. Step 3: Cross multiply
    612,948.10x = 917,672.55 × 612,948.10
  4. Step 4: Simplify right side
    612,948.10x = 562,485,645,944.66
  5. Step 5: Solve for x
    x = 562,485,645,944.66/612,948.10
  6. Step 6: Final answer
    x = 917,672.55

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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.