Home / 857,528.40-1,183,381.11-470,335.92

Finding the Fourth Proportional to 857,528.40, 1,183,381.11 and 470,335.92

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Solution

The fourth proportional to 857,528.40, 1,183,381.11 and 470,335.92 is: 649,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,528.40 : 1,183,381.11 = 470,335.92 : x
  2. Step 2: Convert to fraction form
    857,528.40/1,183,381.11 = 470,335.92/x
  3. Step 3: Cross multiply
    857,528.40x = 1,183,381.11 × 470,335.92
  4. Step 4: Simplify right side
    857,528.40x = 556,586,638,644.79
  5. Step 5: Solve for x
    x = 556,586,638,644.79/857,528.40
  6. Step 6: Final answer
    x = 649,059.13

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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.