Home / 1,189,595.50-1,641,597.30-645,719.58

Finding the Fourth Proportional to 1,189,595.50, 1,641,597.30 and 645,719.58

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Solution

The fourth proportional to 1,189,595.50, 1,641,597.30 and 645,719.58 is: 891,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,595.50 : 1,641,597.30 = 645,719.58 : x
  2. Step 2: Convert to fraction form
    1,189,595.50/1,641,597.30 = 645,719.58/x
  3. Step 3: Cross multiply
    1,189,595.50x = 1,641,597.30 × 645,719.58
  4. Step 4: Simplify right side
    1,189,595.50x = 1,060,011,519,085.13
  5. Step 5: Solve for x
    x = 1,060,011,519,085.13/1,189,595.50
  6. Step 6: Final answer
    x = 891,068.87

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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.