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Finding the Fourth Proportional to 608,923.40, 913,385.10 and 608,923.40

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Solution

The fourth proportional to 608,923.40, 913,385.10 and 608,923.40 is: 913,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,923.40 : 913,385.10 = 608,923.40 : x
  2. Step 2: Convert to fraction form
    608,923.40/913,385.10 = 608,923.40/x
  3. Step 3: Cross multiply
    608,923.40x = 913,385.10 × 608,923.40
  4. Step 4: Simplify right side
    608,923.40x = 556,181,560,601.34
  5. Step 5: Solve for x
    x = 556,181,560,601.34/608,923.40
  6. Step 6: Final answer
    x = 913,385.10

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Double scale
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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.