Home / 749,665.58-1,034,538.57-405,501.35

Finding the Fourth Proportional to 749,665.58, 1,034,538.57 and 405,501.35

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Solution

The fourth proportional to 749,665.58, 1,034,538.57 and 405,501.35 is: 559,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,665.58 : 1,034,538.57 = 405,501.35 : x
  2. Step 2: Convert to fraction form
    749,665.58/1,034,538.57 = 405,501.35/x
  3. Step 3: Cross multiply
    749,665.58x = 1,034,538.57 × 405,501.35
  4. Step 4: Simplify right side
    749,665.58x = 419,506,781,589.38
  5. Step 5: Solve for x
    x = 419,506,781,589.38/749,665.58
  6. Step 6: Final answer
    x = 559,591.90

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.