Home / 1,234,853.40-1,852,280.10-436,128.60

Finding the Fourth Proportional to 1,234,853.40, 1,852,280.10 and 436,128.60

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Solution

The fourth proportional to 1,234,853.40, 1,852,280.10 and 436,128.60 is: 654,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,853.40 : 1,852,280.10 = 436,128.60 : x
  2. Step 2: Convert to fraction form
    1,234,853.40/1,852,280.10 = 436,128.60/x
  3. Step 3: Cross multiply
    1,234,853.40x = 1,852,280.10 × 436,128.60
  4. Step 4: Simplify right side
    1,234,853.40x = 807,832,326,820.86
  5. Step 5: Solve for x
    x = 807,832,326,820.86/1,234,853.40
  6. Step 6: Final answer
    x = 654,192.90

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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.