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Finding the Fourth Proportional to 874,000.70, 1,226,089.30 and 874,000.70

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Solution

The fourth proportional to 874,000.70, 1,226,089.30 and 874,000.70 is: 1,226,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,000.70 : 1,226,089.30 = 874,000.70 : x
  2. Step 2: Convert to fraction form
    874,000.70/1,226,089.30 = 874,000.70/x
  3. Step 3: Cross multiply
    874,000.70x = 1,226,089.30 × 874,000.70
  4. Step 4: Simplify right side
    874,000.70x = 1,071,602,906,462.51
  5. Step 5: Solve for x
    x = 1,071,602,906,462.51/874,000.70
  6. Step 6: Final answer
    x = 1,226,089.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.