Home / 623,435.39-860,323.60-351,500.92

Finding the Fourth Proportional to 623,435.39, 860,323.60 and 351,500.92

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Solution

The fourth proportional to 623,435.39, 860,323.60 and 351,500.92 is: 485,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,435.39 : 860,323.60 = 351,500.92 : x
  2. Step 2: Convert to fraction form
    623,435.39/860,323.60 = 351,500.92/x
  3. Step 3: Cross multiply
    623,435.39x = 860,323.60 × 351,500.92
  4. Step 4: Simplify right side
    623,435.39x = 302,404,536,897.71
  5. Step 5: Solve for x
    x = 302,404,536,897.71/623,435.39
  6. Step 6: Final answer
    x = 485,061.55

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.