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Finding the Fourth Proportional to 607,139.60, 851,239.60 and 607,139.60

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Solution

The fourth proportional to 607,139.60, 851,239.60 and 607,139.60 is: 851,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,139.60 : 851,239.60 = 607,139.60 : x
  2. Step 2: Convert to fraction form
    607,139.60/851,239.60 = 607,139.60/x
  3. Step 3: Cross multiply
    607,139.60x = 851,239.60 × 607,139.60
  4. Step 4: Simplify right side
    607,139.60x = 516,821,270,248.16
  5. Step 5: Solve for x
    x = 516,821,270,248.16/607,139.60
  6. Step 6: Final answer
    x = 851,239.60

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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.