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Finding the Fourth Proportional to 976,565.40, 1,369,057.80 and 976,565.40

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Solution

The fourth proportional to 976,565.40, 1,369,057.80 and 976,565.40 is: 1,369,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,565.40 : 1,369,057.80 = 976,565.40 : x
  2. Step 2: Convert to fraction form
    976,565.40/1,369,057.80 = 976,565.40/x
  3. Step 3: Cross multiply
    976,565.40x = 1,369,057.80 × 976,565.40
  4. Step 4: Simplify right side
    976,565.40x = 1,336,974,478,080.12
  5. Step 5: Solve for x
    x = 1,336,974,478,080.12/976,565.40
  6. Step 6: Final answer
    x = 1,369,057.80

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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.