Home / 781,570.86-1,078,587.09-437,404.07

Finding the Fourth Proportional to 781,570.86, 1,078,587.09 and 437,404.07

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Solution

The fourth proportional to 781,570.86, 1,078,587.09 and 437,404.07 is: 603,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,570.86 : 1,078,587.09 = 437,404.07 : x
  2. Step 2: Convert to fraction form
    781,570.86/1,078,587.09 = 437,404.07/x
  3. Step 3: Cross multiply
    781,570.86x = 1,078,587.09 × 437,404.07
  4. Step 4: Simplify right side
    781,570.86x = 471,778,377,622.52
  5. Step 5: Solve for x
    x = 471,778,377,622.52/781,570.86
  6. Step 6: Final answer
    x = 603,628.41

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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.