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Finding the Fourth Proportional to 877,569.60, 1,231,396.80 and 877,569.60

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Solution

The fourth proportional to 877,569.60, 1,231,396.80 and 877,569.60 is: 1,231,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,569.60 : 1,231,396.80 = 877,569.60 : x
  2. Step 2: Convert to fraction form
    877,569.60/1,231,396.80 = 877,569.60/x
  3. Step 3: Cross multiply
    877,569.60x = 1,231,396.80 × 877,569.60
  4. Step 4: Simplify right side
    877,569.60x = 1,080,636,397,217.28
  5. Step 5: Solve for x
    x = 1,080,636,397,217.28/877,569.60
  6. Step 6: Final answer
    x = 1,231,396.80

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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.