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Finding the Fourth Proportional to 384,711.71, 530,966.72 and 260,476.32

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Solution

The fourth proportional to 384,711.71, 530,966.72 and 260,476.32 is: 359,501.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,711.71 : 530,966.72 = 260,476.32 : x
  2. Step 2: Convert to fraction form
    384,711.71/530,966.72 = 260,476.32/x
  3. Step 3: Cross multiply
    384,711.71x = 530,966.72 × 260,476.32
  4. Step 4: Simplify right side
    384,711.71x = 138,304,255,965.69
  5. Step 5: Solve for x
    x = 138,304,255,965.69/384,711.71
  6. Step 6: Final answer
    x = 359,501.03

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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.