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Finding the Fourth Proportional to 319,510.80, 440,924.94 and 176,271.18

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Solution

The fourth proportional to 319,510.80, 440,924.94 and 176,271.18 is: 243,254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,510.80 : 440,924.94 = 176,271.18 : x
  2. Step 2: Convert to fraction form
    319,510.80/440,924.94 = 176,271.18/x
  3. Step 3: Cross multiply
    319,510.80x = 440,924.94 × 176,271.18
  4. Step 4: Simplify right side
    319,510.80x = 77,722,359,465.23
  5. Step 5: Solve for x
    x = 77,722,359,465.23/319,510.80
  6. Step 6: Final answer
    x = 243,254.25

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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.