Home / 714,335.40-985,795.08-392,075.56

Finding the Fourth Proportional to 714,335.40, 985,795.08 and 392,075.56

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Solution

The fourth proportional to 714,335.40, 985,795.08 and 392,075.56 is: 541,070.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,335.40 : 985,795.08 = 392,075.56 : x
  2. Step 2: Convert to fraction form
    714,335.40/985,795.08 = 392,075.56/x
  3. Step 3: Cross multiply
    714,335.40x = 985,795.08 × 392,075.56
  4. Step 4: Simplify right side
    714,335.40x = 386,506,158,036.25
  5. Step 5: Solve for x
    x = 386,506,158,036.25/714,335.40
  6. Step 6: Final answer
    x = 541,070.98

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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.