Home / 472,804,280.80-708,249,827.40-327,402,023.20

Finding the Fourth Proportional to 472,804,280.80, 708,249,827.40 and 327,402,023.20

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Solution

The fourth proportional to 472,804,280.80, 708,249,827.40 and 327,402,023.20 is: 490,440,623.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,804,280.80 : 708,249,827.40 = 327,402,023.20 : x
  2. Step 2: Convert to fraction form
    472,804,280.80/708,249,827.40 = 327,402,023.20/x
  3. Step 3: Cross multiply
    472,804,280.80x = 708,249,827.40 × 327,402,023.20
  4. Step 4: Simplify right side
    472,804,280.80x = 231,882,426,421,810,784
  5. Step 5: Solve for x
    x = 231,882,426,421,810,784/472,804,280.80
  6. Step 6: Final answer
    x = 490,440,623.82

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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.