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Finding the Fourth Proportional to 623,518.67, 860,456.03 and 337,038.76

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Solution

The fourth proportional to 623,518.67, 860,456.03 and 337,038.76 is: 465,113.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,518.67 : 860,456.03 = 337,038.76 : x
  2. Step 2: Convert to fraction form
    623,518.67/860,456.03 = 337,038.76/x
  3. Step 3: Cross multiply
    623,518.67x = 860,456.03 × 337,038.76
  4. Step 4: Simplify right side
    623,518.67x = 290,007,032,776.10
  5. Step 5: Solve for x
    x = 290,007,032,776.10/623,518.67
  6. Step 6: Final answer
    x = 465,113.63

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Double scale
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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.