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Finding the Fourth Proportional to 693,148.66, 956,510.89 and 387,164.14

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Solution

The fourth proportional to 693,148.66, 956,510.89 and 387,164.14 is: 534,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,148.66 : 956,510.89 = 387,164.14 : x
  2. Step 2: Convert to fraction form
    693,148.66/956,510.89 = 387,164.14/x
  3. Step 3: Cross multiply
    693,148.66x = 956,510.89 × 387,164.14
  4. Step 4: Simplify right side
    693,148.66x = 370,326,716,127.49
  5. Step 5: Solve for x
    x = 370,326,716,127.49/693,148.66
  6. Step 6: Final answer
    x = 534,267.38

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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.