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Finding the Fourth Proportional to 445,345.84, 614,510.40 and 254,318.80

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Solution

The fourth proportional to 445,345.84, 614,510.40 and 254,318.80 is: 350,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,345.84 : 614,510.40 = 254,318.80 : x
  2. Step 2: Convert to fraction form
    445,345.84/614,510.40 = 254,318.80/x
  3. Step 3: Cross multiply
    445,345.84x = 614,510.40 × 254,318.80
  4. Step 4: Simplify right side
    445,345.84x = 156,281,547,515.52
  5. Step 5: Solve for x
    x = 156,281,547,515.52/445,345.84
  6. Step 6: Final answer
    x = 350,921.76

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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.