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Finding the Fourth Proportional to 602,000, 830,889.60 and 360,336.52

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Solution

The fourth proportional to 602,000, 830,889.60 and 360,336.52 is: 497,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,000 : 830,889.60 = 360,336.52 : x
  2. Step 2: Convert to fraction form
    602,000/830,889.60 = 360,336.52/x
  3. Step 3: Cross multiply
    602,000x = 830,889.60 × 360,336.52
  4. Step 4: Simplify right side
    602,000x = 299,399,866,968.19
  5. Step 5: Solve for x
    x = 299,399,866,968.19/602,000
  6. Step 6: Final answer
    x = 497,341.97

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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.