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Finding the Fourth Proportional to 1,249,964.79, 1,724,943.38 and 706,276.59

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Solution

The fourth proportional to 1,249,964.79, 1,724,943.38 and 706,276.59 is: 974,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,964.79 : 1,724,943.38 = 706,276.59 : x
  2. Step 2: Convert to fraction form
    1,249,964.79/1,724,943.38 = 706,276.59/x
  3. Step 3: Cross multiply
    1,249,964.79x = 1,724,943.38 × 706,276.59
  4. Step 4: Simplify right side
    1,249,964.79x = 1,218,287,124,838.09
  5. Step 5: Solve for x
    x = 1,218,287,124,838.09/1,249,964.79
  6. Step 6: Final answer
    x = 974,657.15

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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.