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Finding the Fourth Proportional to 521,411.26, 719,547.54 and 282,947.26

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Solution

The fourth proportional to 521,411.26, 719,547.54 and 282,947.26 is: 390,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,411.26 : 719,547.54 = 282,947.26 : x
  2. Step 2: Convert to fraction form
    521,411.26/719,547.54 = 282,947.26/x
  3. Step 3: Cross multiply
    521,411.26x = 719,547.54 × 282,947.26
  4. Step 4: Simplify right side
    521,411.26x = 203,594,004,882.74
  5. Step 5: Solve for x
    x = 203,594,004,882.74/521,411.26
  6. Step 6: Final answer
    x = 390,467.22

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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.