Home / 626,541.60-939,812.40-153,220.80

Finding the Fourth Proportional to 626,541.60, 939,812.40 and 153,220.80

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Solution

The fourth proportional to 626,541.60, 939,812.40 and 153,220.80 is: 229,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,541.60 : 939,812.40 = 153,220.80 : x
  2. Step 2: Convert to fraction form
    626,541.60/939,812.40 = 153,220.80/x
  3. Step 3: Cross multiply
    626,541.60x = 939,812.40 × 153,220.80
  4. Step 4: Simplify right side
    626,541.60x = 143,998,807,777.92
  5. Step 5: Solve for x
    x = 143,998,807,777.92/626,541.60
  6. Step 6: Final answer
    x = 229,831.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.