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Finding the Fourth Proportional to 561,205.10, 841,807.65 and 561,205.10

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Solution

The fourth proportional to 561,205.10, 841,807.65 and 561,205.10 is: 841,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,205.10 : 841,807.65 = 561,205.10 : x
  2. Step 2: Convert to fraction form
    561,205.10/841,807.65 = 561,205.10/x
  3. Step 3: Cross multiply
    561,205.10x = 841,807.65 × 561,205.10
  4. Step 4: Simplify right side
    561,205.10x = 472,426,746,399.02
  5. Step 5: Solve for x
    x = 472,426,746,399.02/561,205.10
  6. Step 6: Final answer
    x = 841,807.65

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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.