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Finding the Fourth Proportional to 602,666.10, 903,999.15 and 153,386.10

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Solution

The fourth proportional to 602,666.10, 903,999.15 and 153,386.10 is: 230,079.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,666.10 : 903,999.15 = 153,386.10 : x
  2. Step 2: Convert to fraction form
    602,666.10/903,999.15 = 153,386.10/x
  3. Step 3: Cross multiply
    602,666.10x = 903,999.15 × 153,386.10
  4. Step 4: Simplify right side
    602,666.10x = 138,660,904,021.82
  5. Step 5: Solve for x
    x = 138,660,904,021.82/602,666.10
  6. Step 6: Final answer
    x = 230,079.15

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Double scale
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Similar ratio
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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.