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Finding the Fourth Proportional to 292,095.60, 436,030.42 and 256,666.20

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Solution

The fourth proportional to 292,095.60, 436,030.42 and 256,666.20 is: 383,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,095.60 : 436,030.42 = 256,666.20 : x
  2. Step 2: Convert to fraction form
    292,095.60/436,030.42 = 256,666.20/x
  3. Step 3: Cross multiply
    292,095.60x = 436,030.42 × 256,666.20
  4. Step 4: Simplify right side
    292,095.60x = 111,914,270,985.80
  5. Step 5: Solve for x
    x = 111,914,270,985.80/292,095.60
  6. Step 6: Final answer
    x = 383,142.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.