Home / 779,816.70-1,169,725.05-665,655.30

Finding the Fourth Proportional to 779,816.70, 1,169,725.05 and 665,655.30

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Solution

The fourth proportional to 779,816.70, 1,169,725.05 and 665,655.30 is: 998,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,816.70 : 1,169,725.05 = 665,655.30 : x
  2. Step 2: Convert to fraction form
    779,816.70/1,169,725.05 = 665,655.30/x
  3. Step 3: Cross multiply
    779,816.70x = 1,169,725.05 × 665,655.30
  4. Step 4: Simplify right side
    779,816.70x = 778,633,679,075.27
  5. Step 5: Solve for x
    x = 778,633,679,075.27/779,816.70
  6. Step 6: Final answer
    x = 998,482.95

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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.