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Finding the Fourth Proportional to 586,128.41, 808,900.65 and 328,031.22

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Solution

The fourth proportional to 586,128.41, 808,900.65 and 328,031.22 is: 452,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,128.41 : 808,900.65 = 328,031.22 : x
  2. Step 2: Convert to fraction form
    586,128.41/808,900.65 = 328,031.22/x
  3. Step 3: Cross multiply
    586,128.41x = 808,900.65 × 328,031.22
  4. Step 4: Simplify right side
    586,128.41x = 265,344,667,078.29
  5. Step 5: Solve for x
    x = 265,344,667,078.29/586,128.41
  6. Step 6: Final answer
    x = 452,707.40

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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.