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Finding the Fourth Proportional to 514,405.04, 710,065.28 and 418,745.64

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Solution

The fourth proportional to 514,405.04, 710,065.28 and 418,745.64 is: 578,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,405.04 : 710,065.28 = 418,745.64 : x
  2. Step 2: Convert to fraction form
    514,405.04/710,065.28 = 418,745.64/x
  3. Step 3: Cross multiply
    514,405.04x = 710,065.28 × 418,745.64
  4. Step 4: Simplify right side
    514,405.04x = 297,336,740,115.38
  5. Step 5: Solve for x
    x = 297,336,740,115.38/514,405.04
  6. Step 6: Final answer
    x = 578,020.66

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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.