Home / 832,680.56-1,249,018.92-643,416.08

Finding the Fourth Proportional to 832,680.56, 1,249,018.92 and 643,416.08

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Solution

The fourth proportional to 832,680.56, 1,249,018.92 and 643,416.08 is: 965,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,680.56 : 1,249,018.92 = 643,416.08 : x
  2. Step 2: Convert to fraction form
    832,680.56/1,249,018.92 = 643,416.08/x
  3. Step 3: Cross multiply
    832,680.56x = 1,249,018.92 × 643,416.08
  4. Step 4: Simplify right side
    832,680.56x = 803,638,857,352.23
  5. Step 5: Solve for x
    x = 803,638,857,352.23/832,680.56
  6. Step 6: Final answer
    x = 965,122.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.