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Finding the Fourth Proportional to 993,789, 1,490,683.50 and 245,835

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Solution

The fourth proportional to 993,789, 1,490,683.50 and 245,835 is: 368,752.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,789 : 1,490,683.50 = 245,835 : x
  2. Step 2: Convert to fraction form
    993,789/1,490,683.50 = 245,835/x
  3. Step 3: Cross multiply
    993,789x = 1,490,683.50 × 245,835
  4. Step 4: Simplify right side
    993,789x = 366,462,178,222.50
  5. Step 5: Solve for x
    x = 366,462,178,222.50/993,789
  6. Step 6: Final answer
    x = 368,752.50

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1.5x scale

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.