Home / 623,538.60-935,999.10-387,148.20

Finding the Fourth Proportional to 623,538.60, 935,999.10 and 387,148.20

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Solution

The fourth proportional to 623,538.60, 935,999.10 and 387,148.20 is: 581,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,538.60 : 935,999.10 = 387,148.20 : x
  2. Step 2: Convert to fraction form
    623,538.60/935,999.10 = 387,148.20/x
  3. Step 3: Cross multiply
    623,538.60x = 935,999.10 × 387,148.20
  4. Step 4: Simplify right side
    623,538.60x = 362,370,366,766.62
  5. Step 5: Solve for x
    x = 362,370,366,766.62/623,538.60
  6. Step 6: Final answer
    x = 581,151.46

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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.