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Finding the Fourth Proportional to 556,088.41, 767,402.94 and 301,440.16

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Solution

The fourth proportional to 556,088.41, 767,402.94 and 301,440.16 is: 415,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,088.41 : 767,402.94 = 301,440.16 : x
  2. Step 2: Convert to fraction form
    556,088.41/767,402.94 = 301,440.16/x
  3. Step 3: Cross multiply
    556,088.41x = 767,402.94 × 301,440.16
  4. Step 4: Simplify right side
    556,088.41x = 231,326,065,018.07
  5. Step 5: Solve for x
    x = 231,326,065,018.07/556,088.41
  6. Step 6: Final answer
    x = 415,987.93

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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.