Home / 1,110,583.40-1,665,875.10-312,000.35

Finding the Fourth Proportional to 1,110,583.40, 1,665,875.10 and 312,000.35

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Solution

The fourth proportional to 1,110,583.40, 1,665,875.10 and 312,000.35 is: 468,000.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,583.40 : 1,665,875.10 = 312,000.35 : x
  2. Step 2: Convert to fraction form
    1,110,583.40/1,665,875.10 = 312,000.35/x
  3. Step 3: Cross multiply
    1,110,583.40x = 1,665,875.10 × 312,000.35
  4. Step 4: Simplify right side
    1,110,583.40x = 519,753,614,256.29
  5. Step 5: Solve for x
    x = 519,753,614,256.29/1,110,583.40
  6. Step 6: Final answer
    x = 468,000.53

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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.