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Finding the Fourth Proportional to 860,611.84, 1,187,637.75 and 473,418.91

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Solution

The fourth proportional to 860,611.84, 1,187,637.75 and 473,418.91 is: 653,314.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,611.84 : 1,187,637.75 = 473,418.91 : x
  2. Step 2: Convert to fraction form
    860,611.84/1,187,637.75 = 473,418.91/x
  3. Step 3: Cross multiply
    860,611.84x = 1,187,637.75 × 473,418.91
  4. Step 4: Simplify right side
    860,611.84x = 562,250,169,079.85
  5. Step 5: Solve for x
    x = 562,250,169,079.85/860,611.84
  6. Step 6: Final answer
    x = 653,314.47

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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.