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Finding the Fourth Proportional to 573,842.40, 859,726.80 and 507,487.20

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Solution

The fourth proportional to 573,842.40, 859,726.80 and 507,487.20 is: 760,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,842.40 : 859,726.80 = 507,487.20 : x
  2. Step 2: Convert to fraction form
    573,842.40/859,726.80 = 507,487.20/x
  3. Step 3: Cross multiply
    573,842.40x = 859,726.80 × 507,487.20
  4. Step 4: Simplify right side
    573,842.40x = 436,300,346,496.96
  5. Step 5: Solve for x
    x = 436,300,346,496.96/573,842.40
  6. Step 6: Final answer
    x = 760,313.89

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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.