Home / 781,770.64-1,078,895.64-437,637.10

Finding the Fourth Proportional to 781,770.64, 1,078,895.64 and 437,637.10

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Solution

The fourth proportional to 781,770.64, 1,078,895.64 and 437,637.10 is: 603,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,770.64 : 1,078,895.64 = 437,637.10 : x
  2. Step 2: Convert to fraction form
    781,770.64/1,078,895.64 = 437,637.10/x
  3. Step 3: Cross multiply
    781,770.64x = 1,078,895.64 × 437,637.10
  4. Step 4: Simplify right side
    781,770.64x = 472,164,759,092.24
  5. Step 5: Solve for x
    x = 472,164,759,092.24/781,770.64
  6. Step 6: Final answer
    x = 603,968.40

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Double scale
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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.