Home / 623,839.40-936,083.10-291,415.40

Finding the Fourth Proportional to 623,839.40, 936,083.10 and 291,415.40

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Solution

The fourth proportional to 623,839.40, 936,083.10 and 291,415.40 is: 437,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,839.40 : 936,083.10 = 291,415.40 : x
  2. Step 2: Convert to fraction form
    623,839.40/936,083.10 = 291,415.40/x
  3. Step 3: Cross multiply
    623,839.40x = 936,083.10 × 291,415.40
  4. Step 4: Simplify right side
    623,839.40x = 272,789,031,019.74
  5. Step 5: Solve for x
    x = 272,789,031,019.74/623,839.40
  6. Step 6: Final answer
    x = 437,274.45

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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.