Home / 689,436.30-1,034,154.45-190,800.30

Finding the Fourth Proportional to 689,436.30, 1,034,154.45 and 190,800.30

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Solution

The fourth proportional to 689,436.30, 1,034,154.45 and 190,800.30 is: 286,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,436.30 : 1,034,154.45 = 190,800.30 : x
  2. Step 2: Convert to fraction form
    689,436.30/1,034,154.45 = 190,800.30/x
  3. Step 3: Cross multiply
    689,436.30x = 1,034,154.45 × 190,800.30
  4. Step 4: Simplify right side
    689,436.30x = 197,316,979,306.34
  5. Step 5: Solve for x
    x = 197,316,979,306.34/689,436.30
  6. Step 6: Final answer
    x = 286,200.45

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Half scale
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Double scale
Find fourth proportional to 689,437.30, 1,034,155.95 and 190,801.30
Similar ratio
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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.