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Finding the Fourth Proportional to 553,395.49, 830,014.32 and 174,306.39

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Solution

The fourth proportional to 553,395.49, 830,014.32 and 174,306.39 is: 261,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,395.49 : 830,014.32 = 174,306.39 : x
  2. Step 2: Convert to fraction form
    553,395.49/830,014.32 = 174,306.39/x
  3. Step 3: Cross multiply
    553,395.49x = 830,014.32 × 174,306.39
  4. Step 4: Simplify right side
    553,395.49x = 144,676,799,767.51
  5. Step 5: Solve for x
    x = 144,676,799,767.51/553,395.49
  6. Step 6: Final answer
    x = 261,434.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.