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Finding the Fourth Proportional to 495,693, 684,058.16 and 269,338.50

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Solution

The fourth proportional to 495,693, 684,058.16 and 269,338.50 is: 371,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,693 : 684,058.16 = 269,338.50 : x
  2. Step 2: Convert to fraction form
    495,693/684,058.16 = 269,338.50/x
  3. Step 3: Cross multiply
    495,693x = 684,058.16 × 269,338.50
  4. Step 4: Simplify right side
    495,693x = 184,243,199,400.51
  5. Step 5: Solve for x
    x = 184,243,199,400.51/495,693
  6. Step 6: Final answer
    x = 371,688.12

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1.5x scale

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.