Home / 1,210,178.40-1,815,073.20-368,534.40

Finding the Fourth Proportional to 1,210,178.40, 1,815,073.20 and 368,534.40

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Solution

The fourth proportional to 1,210,178.40, 1,815,073.20 and 368,534.40 is: 552,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,178.40 : 1,815,073.20 = 368,534.40 : x
  2. Step 2: Convert to fraction form
    1,210,178.40/1,815,073.20 = 368,534.40/x
  3. Step 3: Cross multiply
    1,210,178.40x = 1,815,073.20 × 368,534.40
  4. Step 4: Simplify right side
    1,210,178.40x = 668,916,912,718.08
  5. Step 5: Solve for x
    x = 668,916,912,718.08/1,210,178.40
  6. Step 6: Final answer
    x = 552,742.40

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Double scale
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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.