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Finding the Fourth Proportional to 874,322.41, 1,312,041.71 and 424,798.19

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Solution

The fourth proportional to 874,322.41, 1,312,041.71 and 424,798.19 is: 637,468.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,322.41 : 1,312,041.71 = 424,798.19 : x
  2. Step 2: Convert to fraction form
    874,322.41/1,312,041.71 = 424,798.19/x
  3. Step 3: Cross multiply
    874,322.41x = 1,312,041.71 × 424,798.19
  4. Step 4: Simplify right side
    874,322.41x = 557,352,941,488.51
  5. Step 5: Solve for x
    x = 557,352,941,488.51/874,322.41
  6. Step 6: Final answer
    x = 637,468.44

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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.