Home / 1,189,318.50-1,641,260.37-645,454.16

Finding the Fourth Proportional to 1,189,318.50, 1,641,260.37 and 645,454.16

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Solution

The fourth proportional to 1,189,318.50, 1,641,260.37 and 645,454.16 is: 890,727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,318.50 : 1,641,260.37 = 645,454.16 : x
  2. Step 2: Convert to fraction form
    1,189,318.50/1,641,260.37 = 645,454.16/x
  3. Step 3: Cross multiply
    1,189,318.50x = 1,641,260.37 × 645,454.16
  4. Step 4: Simplify right side
    1,189,318.50x = 1,059,358,333,828.52
  5. Step 5: Solve for x
    x = 1,059,358,333,828.52/1,189,318.50
  6. Step 6: Final answer
    x = 890,727.20

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Double scale
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1.5x scale

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.