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Finding the Fourth Proportional to 535,316.58, 802,720.71 and 310,745.88

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Solution

The fourth proportional to 535,316.58, 802,720.71 and 310,745.88 is: 465,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,316.58 : 802,720.71 = 310,745.88 : x
  2. Step 2: Convert to fraction form
    535,316.58/802,720.71 = 310,745.88/x
  3. Step 3: Cross multiply
    535,316.58x = 802,720.71 × 310,745.88
  4. Step 4: Simplify right side
    535,316.58x = 249,442,153,423.18
  5. Step 5: Solve for x
    x = 249,442,153,423.18/535,316.58
  6. Step 6: Final answer
    x = 465,971.28

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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.