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Finding the Fourth Proportional to 860,641.60, 1,187,685.48 and 473,462.48

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Solution

The fourth proportional to 860,641.60, 1,187,685.48 and 473,462.48 is: 653,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,641.60 : 1,187,685.48 = 473,462.48 : x
  2. Step 2: Convert to fraction form
    860,641.60/1,187,685.48 = 473,462.48/x
  3. Step 3: Cross multiply
    860,641.60x = 1,187,685.48 × 473,462.48
  4. Step 4: Simplify right side
    860,641.60x = 562,324,512,820.79
  5. Step 5: Solve for x
    x = 562,324,512,820.79/860,641.60
  6. Step 6: Final answer
    x = 653,378.26

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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.