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Finding the Fourth Proportional to 610,118.88, 841,679.28 and 383,889.12

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Solution

The fourth proportional to 610,118.88, 841,679.28 and 383,889.12 is: 529,587.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,118.88 : 841,679.28 = 383,889.12 : x
  2. Step 2: Convert to fraction form
    610,118.88/841,679.28 = 383,889.12/x
  3. Step 3: Cross multiply
    610,118.88x = 841,679.28 × 383,889.12
  4. Step 4: Simplify right side
    610,118.88x = 323,111,518,121.43
  5. Step 5: Solve for x
    x = 323,111,518,121.43/610,118.88
  6. Step 6: Final answer
    x = 529,587.80

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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.