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Finding the Fourth Proportional to 783,908.40, 1,175,862.60 and 783,908.40

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Solution

The fourth proportional to 783,908.40, 1,175,862.60 and 783,908.40 is: 1,175,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,908.40 : 1,175,862.60 = 783,908.40 : x
  2. Step 2: Convert to fraction form
    783,908.40/1,175,862.60 = 783,908.40/x
  3. Step 3: Cross multiply
    783,908.40x = 1,175,862.60 × 783,908.40
  4. Step 4: Simplify right side
    783,908.40x = 921,768,569,385.84
  5. Step 5: Solve for x
    x = 921,768,569,385.84/783,908.40
  6. Step 6: Final answer
    x = 1,175,862.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.