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Finding the Fourth Proportional to 608,943.40, 913,415.10 and 608,943.40

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Solution

The fourth proportional to 608,943.40, 913,415.10 and 608,943.40 is: 913,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,943.40 : 913,415.10 = 608,943.40 : x
  2. Step 2: Convert to fraction form
    608,943.40/913,415.10 = 608,943.40/x
  3. Step 3: Cross multiply
    608,943.40x = 913,415.10 × 608,943.40
  4. Step 4: Simplify right side
    608,943.40x = 556,218,096,605.34
  5. Step 5: Solve for x
    x = 556,218,096,605.34/608,943.40
  6. Step 6: Final answer
    x = 913,415.10

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Double scale
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Similar ratio
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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.