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Finding the Fourth Proportional to 750,955.95, 1,036,345.64 and 411,424.47

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Solution

The fourth proportional to 750,955.95, 1,036,345.64 and 411,424.47 is: 567,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,955.95 : 1,036,345.64 = 411,424.47 : x
  2. Step 2: Convert to fraction form
    750,955.95/1,036,345.64 = 411,424.47/x
  3. Step 3: Cross multiply
    750,955.95x = 1,036,345.64 × 411,424.47
  4. Step 4: Simplify right side
    750,955.95x = 426,377,953,616.69
  5. Step 5: Solve for x
    x = 426,377,953,616.69/750,955.95
  6. Step 6: Final answer
    x = 567,780.25

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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.