Home / 862,709.10-1,190,543.28-500,347.83

Finding the Fourth Proportional to 862,709.10, 1,190,543.28 and 500,347.83

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Solution

The fourth proportional to 862,709.10, 1,190,543.28 and 500,347.83 is: 690,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,709.10 : 1,190,543.28 = 500,347.83 : x
  2. Step 2: Convert to fraction form
    862,709.10/1,190,543.28 = 500,347.83/x
  3. Step 3: Cross multiply
    862,709.10x = 1,190,543.28 × 500,347.83
  4. Step 4: Simplify right side
    862,709.10x = 595,685,746,669.08
  5. Step 5: Solve for x
    x = 595,685,746,669.08/862,709.10
  6. Step 6: Final answer
    x = 690,482.74

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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.