Home / 1,358,400.60-2,037,600.90-411,648.30

Finding the Fourth Proportional to 1,358,400.60, 2,037,600.90 and 411,648.30

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Solution

The fourth proportional to 1,358,400.60, 2,037,600.90 and 411,648.30 is: 617,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,400.60 : 2,037,600.90 = 411,648.30 : x
  2. Step 2: Convert to fraction form
    1,358,400.60/2,037,600.90 = 411,648.30/x
  3. Step 3: Cross multiply
    1,358,400.60x = 2,037,600.90 × 411,648.30
  4. Step 4: Simplify right side
    1,358,400.60x = 838,774,946,563.47
  5. Step 5: Solve for x
    x = 838,774,946,563.47/1,358,400.60
  6. Step 6: Final answer
    x = 617,472.45

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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.