Home / 577,538.28-862,077.27-509,362.20

Finding the Fourth Proportional to 577,538.28, 862,077.27 and 509,362.20

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Solution

The fourth proportional to 577,538.28, 862,077.27 and 509,362.20 is: 760,312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,538.28 : 862,077.27 = 509,362.20 : x
  2. Step 2: Convert to fraction form
    577,538.28/862,077.27 = 509,362.20/x
  3. Step 3: Cross multiply
    577,538.28x = 862,077.27 × 509,362.20
  4. Step 4: Simplify right side
    577,538.28x = 439,109,574,817.19
  5. Step 5: Solve for x
    x = 439,109,574,817.19/577,538.28
  6. Step 6: Final answer
    x = 760,312.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.