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Finding the Fourth Proportional to 607,071.10, 851,143.70 and 607,071.10

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Solution

The fourth proportional to 607,071.10, 851,143.70 and 607,071.10 is: 851,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,071.10 : 851,143.70 = 607,071.10 : x
  2. Step 2: Convert to fraction form
    607,071.10/851,143.70 = 607,071.10/x
  3. Step 3: Cross multiply
    607,071.10x = 851,143.70 × 607,071.10
  4. Step 4: Simplify right side
    607,071.10x = 516,704,742,217.07
  5. Step 5: Solve for x
    x = 516,704,742,217.07/607,071.10
  6. Step 6: Final answer
    x = 851,143.70

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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.