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Finding the Fourth Proportional to 292,038.40, 409,683.20 and 292,038.40

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Solution

The fourth proportional to 292,038.40, 409,683.20 and 292,038.40 is: 409,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,038.40 : 409,683.20 = 292,038.40 : x
  2. Step 2: Convert to fraction form
    292,038.40/409,683.20 = 292,038.40/x
  3. Step 3: Cross multiply
    292,038.40x = 409,683.20 × 292,038.40
  4. Step 4: Simplify right side
    292,038.40x = 119,643,226,234.88
  5. Step 5: Solve for x
    x = 119,643,226,234.88/292,038.40
  6. Step 6: Final answer
    x = 409,683.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.