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Finding the Fourth Proportional to 2,415,428.40, 3,386,576.40 and 2,415,428.40

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Solution

The fourth proportional to 2,415,428.40, 3,386,576.40 and 2,415,428.40 is: 3,386,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415,428.40 : 3,386,576.40 = 2,415,428.40 : x
  2. Step 2: Convert to fraction form
    2,415,428.40/3,386,576.40 = 2,415,428.40/x
  3. Step 3: Cross multiply
    2,415,428.40x = 3,386,576.40 × 2,415,428.40
  4. Step 4: Simplify right side
    2,415,428.40x = 8,180,032,815,329.76
  5. Step 5: Solve for x
    x = 8,180,032,815,329.76/2,415,428.40
  6. Step 6: Final answer
    x = 3,386,576.40

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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.