Home / 805,012.08-1,111,021.98-519,363.12

Finding the Fourth Proportional to 805,012.08, 1,111,021.98 and 519,363.12

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Solution

The fourth proportional to 805,012.08, 1,111,021.98 and 519,363.12 is: 716,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,012.08 : 1,111,021.98 = 519,363.12 : x
  2. Step 2: Convert to fraction form
    805,012.08/1,111,021.98 = 519,363.12/x
  3. Step 3: Cross multiply
    805,012.08x = 1,111,021.98 × 519,363.12
  4. Step 4: Simplify right side
    805,012.08x = 577,023,841,921.38
  5. Step 5: Solve for x
    x = 577,023,841,921.38/805,012.08
  6. Step 6: Final answer
    x = 716,789.05

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Half scale
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Double scale
Find fourth proportional to 805,013.08, 1,111,023.36 and 519,364.12
Similar ratio
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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.