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Finding the Fourth Proportional to 612,069.90, 857,597.70 and 612,069.90

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Solution

The fourth proportional to 612,069.90, 857,597.70 and 612,069.90 is: 857,597.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,069.90 : 857,597.70 = 612,069.90 : x
  2. Step 2: Convert to fraction form
    612,069.90/857,597.70 = 612,069.90/x
  3. Step 3: Cross multiply
    612,069.90x = 857,597.70 × 612,069.90
  4. Step 4: Simplify right side
    612,069.90x = 524,909,738,479.23
  5. Step 5: Solve for x
    x = 524,909,738,479.23/612,069.90
  6. Step 6: Final answer
    x = 857,597.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.