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Finding the Fourth Proportional to 860,679.70, 1,187,721.43 and 473,472.50

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Solution

The fourth proportional to 860,679.70, 1,187,721.43 and 473,472.50 is: 653,382.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,679.70 : 1,187,721.43 = 473,472.50 : x
  2. Step 2: Convert to fraction form
    860,679.70/1,187,721.43 = 473,472.50/x
  3. Step 3: Cross multiply
    860,679.70x = 1,187,721.43 × 473,472.50
  4. Step 4: Simplify right side
    860,679.70x = 562,353,427,643.39
  5. Step 5: Solve for x
    x = 562,353,427,643.39/860,679.70
  6. Step 6: Final answer
    x = 653,382.94

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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.