Home / 838,191.46-1,156,802.70-470,728.98

Finding the Fourth Proportional to 838,191.46, 1,156,802.70 and 470,728.98

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Solution

The fourth proportional to 838,191.46, 1,156,802.70 and 470,728.98 is: 649,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,191.46 : 1,156,802.70 = 470,728.98 : x
  2. Step 2: Convert to fraction form
    838,191.46/1,156,802.70 = 470,728.98/x
  3. Step 3: Cross multiply
    838,191.46x = 1,156,802.70 × 470,728.98
  4. Step 4: Simplify right side
    838,191.46x = 544,540,555,032.25
  5. Step 5: Solve for x
    x = 544,540,555,032.25/838,191.46
  6. Step 6: Final answer
    x = 649,661.30

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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.