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Finding the Fourth Proportional to 436,381.47, 602,210.16 and 245,393.19

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Solution

The fourth proportional to 436,381.47, 602,210.16 and 245,393.19 is: 338,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,381.47 : 602,210.16 = 245,393.19 : x
  2. Step 2: Convert to fraction form
    436,381.47/602,210.16 = 245,393.19/x
  3. Step 3: Cross multiply
    436,381.47x = 602,210.16 × 245,393.19
  4. Step 4: Simplify right side
    436,381.47x = 147,778,272,212.81
  5. Step 5: Solve for x
    x = 147,778,272,212.81/436,381.47
  6. Step 6: Final answer
    x = 338,644.70

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Half scale
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Double scale
Find fourth proportional to 436,382.47, 602,211.54 and 245,394.19
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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.