Home / 860,685.51-1,187,729.46-473,478.30

Finding the Fourth Proportional to 860,685.51, 1,187,729.46 and 473,478.30

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Solution

The fourth proportional to 860,685.51, 1,187,729.46 and 473,478.30 is: 653,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,685.51 : 1,187,729.46 = 473,478.30 : x
  2. Step 2: Convert to fraction form
    860,685.51/1,187,729.46 = 473,478.30/x
  3. Step 3: Cross multiply
    860,685.51x = 1,187,729.46 × 473,478.30
  4. Step 4: Simplify right side
    860,685.51x = 562,364,125,580.72
  5. Step 5: Solve for x
    x = 562,364,125,580.72/860,685.51
  6. Step 6: Final answer
    x = 653,390.95

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Double scale
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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.