Home / 804,904.65-1,207,356.98-385,000.65

Finding the Fourth Proportional to 804,904.65, 1,207,356.98 and 385,000.65

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Solution

The fourth proportional to 804,904.65, 1,207,356.98 and 385,000.65 is: 577,500.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,904.65 : 1,207,356.98 = 385,000.65 : x
  2. Step 2: Convert to fraction form
    804,904.65/1,207,356.98 = 385,000.65/x
  3. Step 3: Cross multiply
    804,904.65x = 1,207,356.98 × 385,000.65
  4. Step 4: Simplify right side
    804,904.65x = 464,833,220,157.03
  5. Step 5: Solve for x
    x = 464,833,220,157.03/804,904.65
  6. Step 6: Final answer
    x = 577,500.98

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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.