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Finding the Fourth Proportional to 1,065,570, 1,470,486.60 and 588,642

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Solution

The fourth proportional to 1,065,570, 1,470,486.60 and 588,642 is: 812,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,570 : 1,470,486.60 = 588,642 : x
  2. Step 2: Convert to fraction form
    1,065,570/1,470,486.60 = 588,642/x
  3. Step 3: Cross multiply
    1,065,570x = 1,470,486.60 × 588,642
  4. Step 4: Simplify right side
    1,065,570x = 865,590,173,197.20
  5. Step 5: Solve for x
    x = 865,590,173,197.20/1,065,570
  6. Step 6: Final answer
    x = 812,325.96

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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.