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Finding the Fourth Proportional to 520,055.40, 729,060.60 and 520,055.40

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Solution

The fourth proportional to 520,055.40, 729,060.60 and 520,055.40 is: 729,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,055.40 : 729,060.60 = 520,055.40 : x
  2. Step 2: Convert to fraction form
    520,055.40/729,060.60 = 520,055.40/x
  3. Step 3: Cross multiply
    520,055.40x = 729,060.60 × 520,055.40
  4. Step 4: Simplify right side
    520,055.40x = 379,151,901,957.24
  5. Step 5: Solve for x
    x = 379,151,901,957.24/520,055.40
  6. Step 6: Final answer
    x = 729,060.60

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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.