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Finding the Fourth Proportional to 978,193.80, 1,467,290.70 and 604,427.40

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Solution

The fourth proportional to 978,193.80, 1,467,290.70 and 604,427.40 is: 906,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,193.80 : 1,467,290.70 = 604,427.40 : x
  2. Step 2: Convert to fraction form
    978,193.80/1,467,290.70 = 604,427.40/x
  3. Step 3: Cross multiply
    978,193.80x = 1,467,290.70 × 604,427.40
  4. Step 4: Simplify right side
    978,193.80x = 886,870,702,845.18
  5. Step 5: Solve for x
    x = 886,870,702,845.18/978,193.80
  6. Step 6: Final answer
    x = 906,641.10

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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.