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Finding the Fourth Proportional to 1,429,333.16, 1,972,483.65 and 784,795.10

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Solution

The fourth proportional to 1,429,333.16, 1,972,483.65 and 784,795.10 is: 1,083,019.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,333.16 : 1,972,483.65 = 784,795.10 : x
  2. Step 2: Convert to fraction form
    1,429,333.16/1,972,483.65 = 784,795.10/x
  3. Step 3: Cross multiply
    1,429,333.16x = 1,972,483.65 × 784,795.10
  4. Step 4: Simplify right side
    1,429,333.16x = 1,547,995,493,487.70
  5. Step 5: Solve for x
    x = 1,547,995,493,487.70/1,429,333.16
  6. Step 6: Final answer
    x = 1,083,019.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.