Home / 623,733.60-935,600.40-387,537.60

Finding the Fourth Proportional to 623,733.60, 935,600.40 and 387,537.60

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Solution

The fourth proportional to 623,733.60, 935,600.40 and 387,537.60 is: 581,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,733.60 : 935,600.40 = 387,537.60 : x
  2. Step 2: Convert to fraction form
    623,733.60/935,600.40 = 387,537.60/x
  3. Step 3: Cross multiply
    623,733.60x = 935,600.40 × 387,537.60
  4. Step 4: Simplify right side
    623,733.60x = 362,580,333,575.04
  5. Step 5: Solve for x
    x = 362,580,333,575.04/623,733.60
  6. Step 6: Final answer
    x = 581,306.40

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