Home / 623,725.56-860,705.93-351,777.20

Finding the Fourth Proportional to 623,725.56, 860,705.93 and 351,777.20

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Solution

The fourth proportional to 623,725.56, 860,705.93 and 351,777.20 is: 485,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,725.56 : 860,705.93 = 351,777.20 : x
  2. Step 2: Convert to fraction form
    623,725.56/860,705.93 = 351,777.20/x
  3. Step 3: Cross multiply
    623,725.56x = 860,705.93 × 351,777.20
  4. Step 4: Simplify right side
    623,725.56x = 302,776,717,531.98
  5. Step 5: Solve for x
    x = 302,776,717,531.98/623,725.56
  6. Step 6: Final answer
    x = 485,432.60

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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.