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Finding the Fourth Proportional to 1,249,983.18, 1,724,968.65 and 706,294.98

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Solution

The fourth proportional to 1,249,983.18, 1,724,968.65 and 706,294.98 is: 974,682.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,983.18 : 1,724,968.65 = 706,294.98 : x
  2. Step 2: Convert to fraction form
    1,249,983.18/1,724,968.65 = 706,294.98/x
  3. Step 3: Cross multiply
    1,249,983.18x = 1,724,968.65 × 706,294.98
  4. Step 4: Simplify right side
    1,249,983.18x = 1,218,336,698,152.38
  5. Step 5: Solve for x
    x = 1,218,336,698,152.38/1,249,983.18
  6. Step 6: Final answer
    x = 974,682.47

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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.