Home / 620,541.40-856,448.78-517,011.52

Finding the Fourth Proportional to 620,541.40, 856,448.78 and 517,011.52

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Solution

The fourth proportional to 620,541.40, 856,448.78 and 517,011.52 is: 713,560.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,541.40 : 856,448.78 = 517,011.52 : x
  2. Step 2: Convert to fraction form
    620,541.40/856,448.78 = 517,011.52/x
  3. Step 3: Cross multiply
    620,541.40x = 856,448.78 × 517,011.52
  4. Step 4: Simplify right side
    620,541.40x = 442,793,885,549.95
  5. Step 5: Solve for x
    x = 442,793,885,549.95/620,541.40
  6. Step 6: Final answer
    x = 713,560.59

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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.