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Finding the Fourth Proportional to 608,946.90, 913,420.35 and 608,946.90

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Solution

The fourth proportional to 608,946.90, 913,420.35 and 608,946.90 is: 913,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,946.90 : 913,420.35 = 608,946.90 : x
  2. Step 2: Convert to fraction form
    608,946.90/913,420.35 = 608,946.90/x
  3. Step 3: Cross multiply
    608,946.90x = 913,420.35 × 608,946.90
  4. Step 4: Simplify right side
    608,946.90x = 556,224,490,529.42
  5. Step 5: Solve for x
    x = 556,224,490,529.42/608,946.90
  6. Step 6: Final answer
    x = 913,420.35

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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.