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Finding the Fourth Proportional to 1,974,501.90, 2,959,784.55 and 907,683.30

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Solution

The fourth proportional to 1,974,501.90, 2,959,784.55 and 907,683.30 is: 1,360,620.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,501.90 : 2,959,784.55 = 907,683.30 : x
  2. Step 2: Convert to fraction form
    1,974,501.90/2,959,784.55 = 907,683.30/x
  3. Step 3: Cross multiply
    1,974,501.90x = 2,959,784.55 × 907,683.30
  4. Step 4: Simplify right side
    1,974,501.90x = 2,686,547,007,633.02
  5. Step 5: Solve for x
    x = 2,686,547,007,633.02/1,974,501.90
  6. Step 6: Final answer
    x = 1,360,620.12

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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.