Home / 724,678.40-1,085,705.40-619,702.40

Finding the Fourth Proportional to 724,678.40, 1,085,705.40 and 619,702.40

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Solution

The fourth proportional to 724,678.40, 1,085,705.40 and 619,702.40 is: 928,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,678.40 : 1,085,705.40 = 619,702.40 : x
  2. Step 2: Convert to fraction form
    724,678.40/1,085,705.40 = 619,702.40/x
  3. Step 3: Cross multiply
    724,678.40x = 1,085,705.40 × 619,702.40
  4. Step 4: Simplify right side
    724,678.40x = 672,814,242,072.96
  5. Step 5: Solve for x
    x = 672,814,242,072.96/724,678.40
  6. Step 6: Final answer
    x = 928,431.48

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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.