Home / 1,211,952-1,817,928.96-463,998.72

Finding the Fourth Proportional to 1,211,952, 1,817,928.96 and 463,998.72

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Solution

The fourth proportional to 1,211,952, 1,817,928.96 and 463,998.72 is: 695,998.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,952 : 1,817,928.96 = 463,998.72 : x
  2. Step 2: Convert to fraction form
    1,211,952/1,817,928.96 = 463,998.72/x
  3. Step 3: Cross multiply
    1,211,952x = 1,817,928.96 × 463,998.72
  4. Step 4: Simplify right side
    1,211,952x = 843,516,710,490.93
  5. Step 5: Solve for x
    x = 843,516,710,490.93/1,211,952
  6. Step 6: Final answer
    x = 695,998.45

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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.