Home / 1,275,009.40-1,912,514.10-433,561.15

Finding the Fourth Proportional to 1,275,009.40, 1,912,514.10 and 433,561.15

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Solution

The fourth proportional to 1,275,009.40, 1,912,514.10 and 433,561.15 is: 650,341.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,009.40 : 1,912,514.10 = 433,561.15 : x
  2. Step 2: Convert to fraction form
    1,275,009.40/1,912,514.10 = 433,561.15/x
  3. Step 3: Cross multiply
    1,275,009.40x = 1,912,514.10 × 433,561.15
  4. Step 4: Simplify right side
    1,275,009.40x = 829,191,812,587.22
  5. Step 5: Solve for x
    x = 829,191,812,587.22/1,275,009.40
  6. Step 6: Final answer
    x = 650,341.73

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Half scale
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Double scale
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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.