Home / 893,501.72-1,233,041.88-485,603.60

Finding the Fourth Proportional to 893,501.72, 1,233,041.88 and 485,603.60

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Solution

The fourth proportional to 893,501.72, 1,233,041.88 and 485,603.60 is: 670,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,501.72 : 1,233,041.88 = 485,603.60 : x
  2. Step 2: Convert to fraction form
    893,501.72/1,233,041.88 = 485,603.60/x
  3. Step 3: Cross multiply
    893,501.72x = 1,233,041.88 × 485,603.60
  4. Step 4: Simplify right side
    893,501.72x = 598,769,575,878.77
  5. Step 5: Solve for x
    x = 598,769,575,878.77/893,501.72
  6. Step 6: Final answer
    x = 670,138.13

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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.