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Finding the Fourth Proportional to 583,437.47, 805,143.65 and 328,797.77

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Solution

The fourth proportional to 583,437.47, 805,143.65 and 328,797.77 is: 453,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,437.47 : 805,143.65 = 328,797.77 : x
  2. Step 2: Convert to fraction form
    583,437.47/805,143.65 = 328,797.77/x
  3. Step 3: Cross multiply
    583,437.47x = 805,143.65 × 328,797.77
  4. Step 4: Simplify right side
    583,437.47x = 264,729,430,979.95
  5. Step 5: Solve for x
    x = 264,729,430,979.95/583,437.47
  6. Step 6: Final answer
    x = 453,740.88

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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.