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Finding the Fourth Proportional to 292,579, 438,582.90 and 142,813.24

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Solution

The fourth proportional to 292,579, 438,582.90 and 142,813.24 is: 214,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,579 : 438,582.90 = 142,813.24 : x
  2. Step 2: Convert to fraction form
    292,579/438,582.90 = 142,813.24/x
  3. Step 3: Cross multiply
    292,579x = 438,582.90 × 142,813.24
  4. Step 4: Simplify right side
    292,579x = 62,635,444,957.60
  5. Step 5: Solve for x
    x = 62,635,444,957.60/292,579
  6. Step 6: Final answer
    x = 214,080.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.