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Finding the Fourth Proportional to 611,567.10, 915,601.05 and 611,567.10

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Solution

The fourth proportional to 611,567.10, 915,601.05 and 611,567.10 is: 915,601.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,567.10 : 915,601.05 = 611,567.10 : x
  2. Step 2: Convert to fraction form
    611,567.10/915,601.05 = 611,567.10/x
  3. Step 3: Cross multiply
    611,567.10x = 915,601.05 × 611,567.10
  4. Step 4: Simplify right side
    611,567.10x = 559,951,478,905.46
  5. Step 5: Solve for x
    x = 559,951,478,905.46/611,567.10
  6. Step 6: Final answer
    x = 915,601.05

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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.