Home / 1,122,409.40-1,683,614.10-412,946.60

Finding the Fourth Proportional to 1,122,409.40, 1,683,614.10 and 412,946.60

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Solution

The fourth proportional to 1,122,409.40, 1,683,614.10 and 412,946.60 is: 619,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,409.40 : 1,683,614.10 = 412,946.60 : x
  2. Step 2: Convert to fraction form
    1,122,409.40/1,683,614.10 = 412,946.60/x
  3. Step 3: Cross multiply
    1,122,409.40x = 1,683,614.10 × 412,946.60
  4. Step 4: Simplify right side
    1,122,409.40x = 695,242,718,307.06
  5. Step 5: Solve for x
    x = 695,242,718,307.06/1,122,409.40
  6. Step 6: Final answer
    x = 619,419.90

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Double scale
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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.