Home / 1,069,553.80-1,604,330.70-438,920.20

Finding the Fourth Proportional to 1,069,553.80, 1,604,330.70 and 438,920.20

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Solution

The fourth proportional to 1,069,553.80, 1,604,330.70 and 438,920.20 is: 658,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,553.80 : 1,604,330.70 = 438,920.20 : x
  2. Step 2: Convert to fraction form
    1,069,553.80/1,604,330.70 = 438,920.20/x
  3. Step 3: Cross multiply
    1,069,553.80x = 1,604,330.70 × 438,920.20
  4. Step 4: Simplify right side
    1,069,553.80x = 704,173,151,710.14
  5. Step 5: Solve for x
    x = 704,173,151,710.14/1,069,553.80
  6. Step 6: Final answer
    x = 658,380.30

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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.