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Finding the Fourth Proportional to 702,953.10, 1,054,429.65 and 514,946.70

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Solution

The fourth proportional to 702,953.10, 1,054,429.65 and 514,946.70 is: 772,420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,953.10 : 1,054,429.65 = 514,946.70 : x
  2. Step 2: Convert to fraction form
    702,953.10/1,054,429.65 = 514,946.70/x
  3. Step 3: Cross multiply
    702,953.10x = 1,054,429.65 × 514,946.70
  4. Step 4: Simplify right side
    702,953.10x = 542,975,068,649.66
  5. Step 5: Solve for x
    x = 542,975,068,649.66/702,953.10
  6. Step 6: Final answer
    x = 772,420.05

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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.