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Finding the Fourth Proportional to 307,363.04, 424,106.48 and 171,386.16

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Solution

The fourth proportional to 307,363.04, 424,106.48 and 171,386.16 is: 236,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,363.04 : 424,106.48 = 171,386.16 : x
  2. Step 2: Convert to fraction form
    307,363.04/424,106.48 = 171,386.16/x
  3. Step 3: Cross multiply
    307,363.04x = 424,106.48 × 171,386.16
  4. Step 4: Simplify right side
    307,363.04x = 72,685,981,038.32
  5. Step 5: Solve for x
    x = 72,685,981,038.32/307,363.04
  6. Step 6: Final answer
    x = 236,482.50

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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.