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Finding the Fourth Proportional to 572,730.60, 859,095.90 and 292,211.40

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Solution

The fourth proportional to 572,730.60, 859,095.90 and 292,211.40 is: 438,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,730.60 : 859,095.90 = 292,211.40 : x
  2. Step 2: Convert to fraction form
    572,730.60/859,095.90 = 292,211.40/x
  3. Step 3: Cross multiply
    572,730.60x = 859,095.90 × 292,211.40
  4. Step 4: Simplify right side
    572,730.60x = 251,037,615,673.26
  5. Step 5: Solve for x
    x = 251,037,615,673.26/572,730.60
  6. Step 6: Final answer
    x = 438,317.10

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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.