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Finding the Fourth Proportional to 581,264.76, 802,536.80 and 519,820.30

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Solution

The fourth proportional to 581,264.76, 802,536.80 and 519,820.30 is: 717,702.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,264.76 : 802,536.80 = 519,820.30 : x
  2. Step 2: Convert to fraction form
    581,264.76/802,536.80 = 519,820.30/x
  3. Step 3: Cross multiply
    581,264.76x = 802,536.80 × 519,820.30
  4. Step 4: Simplify right side
    581,264.76x = 417,174,920,137.04
  5. Step 5: Solve for x
    x = 417,174,920,137.04/581,264.76
  6. Step 6: Final answer
    x = 717,702.07

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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.