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Finding the Fourth Proportional to 768,926.16, 1,153,599.12 and 369,900.72

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Solution

The fourth proportional to 768,926.16, 1,153,599.12 and 369,900.72 is: 554,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,926.16 : 1,153,599.12 = 369,900.72 : x
  2. Step 2: Convert to fraction form
    768,926.16/1,153,599.12 = 369,900.72/x
  3. Step 3: Cross multiply
    768,926.16x = 1,153,599.12 × 369,900.72
  4. Step 4: Simplify right side
    768,926.16x = 426,717,145,079.37
  5. Step 5: Solve for x
    x = 426,717,145,079.37/768,926.16
  6. Step 6: Final answer
    x = 554,952.05

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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.