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Finding the Fourth Proportional to 623,774.40, 860,808.08 and 337,293.80

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Solution

The fourth proportional to 623,774.40, 860,808.08 and 337,293.80 is: 465,465.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,774.40 : 860,808.08 = 337,293.80 : x
  2. Step 2: Convert to fraction form
    623,774.40/860,808.08 = 337,293.80/x
  3. Step 3: Cross multiply
    623,774.40x = 860,808.08 × 337,293.80
  4. Step 4: Simplify right side
    623,774.40x = 290,345,228,373.90
  5. Step 5: Solve for x
    x = 290,345,228,373.90/623,774.40
  6. Step 6: Final answer
    x = 465,465.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.