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Finding the Fourth Proportional to 521,417.06, 719,555.49 and 282,953.06

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Solution

The fourth proportional to 521,417.06, 719,555.49 and 282,953.06 is: 390,475.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,417.06 : 719,555.49 = 282,953.06 : x
  2. Step 2: Convert to fraction form
    521,417.06/719,555.49 = 282,953.06/x
  3. Step 3: Cross multiply
    521,417.06x = 719,555.49 × 282,953.06
  4. Step 4: Simplify right side
    521,417.06x = 203,600,427,735.30
  5. Step 5: Solve for x
    x = 203,600,427,735.30/521,417.06
  6. Step 6: Final answer
    x = 390,475.19

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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.