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Finding the Fourth Proportional to 692,148.40, 966,645.80 and 692,148.40

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Solution

The fourth proportional to 692,148.40, 966,645.80 and 692,148.40 is: 966,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,148.40 : 966,645.80 = 692,148.40 : x
  2. Step 2: Convert to fraction form
    692,148.40/966,645.80 = 692,148.40/x
  3. Step 3: Cross multiply
    692,148.40x = 966,645.80 × 692,148.40
  4. Step 4: Simplify right side
    692,148.40x = 669,062,343,836.72
  5. Step 5: Solve for x
    x = 669,062,343,836.72/692,148.40
  6. Step 6: Final answer
    x = 966,645.80

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Double scale
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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.