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Finding the Fourth Proportional to 561,261.48, 841,899.51 and 187,284.48

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Solution

The fourth proportional to 561,261.48, 841,899.51 and 187,284.48 is: 280,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,261.48 : 841,899.51 = 187,284.48 : x
  2. Step 2: Convert to fraction form
    561,261.48/841,899.51 = 187,284.48/x
  3. Step 3: Cross multiply
    561,261.48x = 841,899.51 × 187,284.48
  4. Step 4: Simplify right side
    561,261.48x = 157,674,711,942.61
  5. Step 5: Solve for x
    x = 157,674,711,942.61/561,261.48
  6. Step 6: Final answer
    x = 280,929.15

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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.