Home / 781,753.03-1,078,837.46-437,580.40

Finding the Fourth Proportional to 781,753.03, 1,078,837.46 and 437,580.40

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Solution

The fourth proportional to 781,753.03, 1,078,837.46 and 437,580.40 is: 603,871.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,753.03 : 1,078,837.46 = 437,580.40 : x
  2. Step 2: Convert to fraction form
    781,753.03/1,078,837.46 = 437,580.40/x
  3. Step 3: Cross multiply
    781,753.03x = 1,078,837.46 × 437,580.40
  4. Step 4: Simplify right side
    781,753.03x = 472,078,127,864.07
  5. Step 5: Solve for x
    x = 472,078,127,864.07/781,753.03
  6. Step 6: Final answer
    x = 603,871.18

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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.