Home / 1,316,666.62-1,975,068.24-418,178.68

Finding the Fourth Proportional to 1,316,666.62, 1,975,068.24 and 418,178.68

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Solution

The fourth proportional to 1,316,666.62, 1,975,068.24 and 418,178.68 is: 627,289.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,666.62 : 1,975,068.24 = 418,178.68 : x
  2. Step 2: Convert to fraction form
    1,316,666.62/1,975,068.24 = 418,178.68/x
  3. Step 3: Cross multiply
    1,316,666.62x = 1,975,068.24 × 418,178.68
  4. Step 4: Simplify right side
    1,316,666.62x = 825,931,429,513.12
  5. Step 5: Solve for x
    x = 825,931,429,513.12/1,316,666.62
  6. Step 6: Final answer
    x = 627,289.72

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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.