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Finding the Fourth Proportional to 867,554.55, 1,195,602.48 and 625,424.49

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Solution

The fourth proportional to 867,554.55, 1,195,602.48 and 625,424.49 is: 861,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,554.55 : 1,195,602.48 = 625,424.49 : x
  2. Step 2: Convert to fraction form
    867,554.55/1,195,602.48 = 625,424.49/x
  3. Step 3: Cross multiply
    867,554.55x = 1,195,602.48 × 625,424.49
  4. Step 4: Simplify right side
    867,554.55x = 747,759,071,296.74
  5. Step 5: Solve for x
    x = 747,759,071,296.74/867,554.55
  6. Step 6: Final answer
    x = 861,915.91

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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.