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Finding the Fourth Proportional to 525,804.78, 789,407.71 and 355,598.32

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Solution

The fourth proportional to 525,804.78, 789,407.71 and 355,598.32 is: 533,871.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,804.78 : 789,407.71 = 355,598.32 : x
  2. Step 2: Convert to fraction form
    525,804.78/789,407.71 = 355,598.32/x
  3. Step 3: Cross multiply
    525,804.78x = 789,407.71 × 355,598.32
  4. Step 4: Simplify right side
    525,804.78x = 280,712,054,088.67
  5. Step 5: Solve for x
    x = 280,712,054,088.67/525,804.78
  6. Step 6: Final answer
    x = 533,871.24

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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.