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Finding the Fourth Proportional to 707,430.60, 1,058,813.10 and 497,478.60

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Solution

The fourth proportional to 707,430.60, 1,058,813.10 and 497,478.60 is: 744,577.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,430.60 : 1,058,813.10 = 497,478.60 : x
  2. Step 2: Convert to fraction form
    707,430.60/1,058,813.10 = 497,478.60/x
  3. Step 3: Cross multiply
    707,430.60x = 1,058,813.10 × 497,478.60
  4. Step 4: Simplify right side
    707,430.60x = 526,736,858,649.66
  5. Step 5: Solve for x
    x = 526,736,858,649.66/707,430.60
  6. Step 6: Final answer
    x = 744,577.43

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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.